Acts of Stupidity by Character

Many of the deaths that occur in Happy Tree Friends are a result of the main characters doing something ignorant, unwise, or just downright stupid. Almost every character is prone to committing these actions, causing the deaths of themselves and/or the characters around them.
==Cuddles==
thumb|270x270px|Signs are obeyed for a reason which Cuddles will soon find out.
Cuddles is known for being mischievous and self-centered, which is often the root cause for several of his actions and sometimes the death of other characters and/or himself.
* Water You Wading For: He jumps into the lake, despite swimming not being allowed, which Flaky points out. Because of this, he is attacked and killed by the creatures in the lake.
* Sweet Ride: He does not look where he is skating, causing him to crash into a staircase.
* Happy Trails Pt. 1: He sticks his upper body out of the bus window, which is not safe.
* Flippin' Burgers: When Fliqpy flips Cuddles and Giggles' table, Cuddles just stares at him blankly and continues drinking his soda like nothing happened. When Fliqpy stabs a straw into Cuddles' chest, his blood spurts out of the straw, so he drinks his own blood thinking it would help, then dies from massive blood loss, instead of trying to use his finger to block the blood from flowing out.
* Let It Slide: He is oblivious that a water valve was turned off. He then pushes Flaky (who clearly didn't want to go down a dry slide), skinning her and loosening all the bolts on a slide section.
* The Wrong Side of the Tracks: He returns to the roller coaster, despite the accident during his first ride. Cuddles didn’t warn the new passengers that the roller coaster was not safe. He also raised his hands in the air, causing him to lose them as he should have ducked when entering a tunnel.
* Ipso Fatso: He crashes his car for no reason (Debatable as he might have been distracted by Disco Bear and Lumpy).
* Take a Hike: Somehow, he does not notice that Toothy is tying a king cobra to the stake instead of a rope.
* Dunce Upon a Time: Though this does not kill him, he, along with Sniffles and Flaky, runs dangerously close to Giant Lumpy for no reason after Mime’s death. He chooses a hiding spot where he is standing on blades designed to grind finely. He also visibly and audibly moves in this hiding spot, giving away his location to Giant Lumpy (To be fair, he was hiding in a pepper grinder, and he could not help sneezing).
* A Change of Heart: He plays soccer with Handy's heart.
* A Hole Lotta Love: He leaves his trash cans in the street instead of on the edge of his lawn or on the sidewalk. He and Mime try to run away from the falling chunk of his house instead of taking a few steps to the side to avoid being crushed.
* Aw, Shucks!: He drives past a boom gate that, although malfunctioning, was trying to go down, indicating that a train was coming.
* A Sight for Sore Eyes: He continues drinking his soda even after The Mole drops a bag into his drink.
* Hear Today, Gone Tomorrow: In the opening scene, despite being a rabbit, he holds the tin can phone to the side of his head (where a human ear would go) instead of up at the base of his ears. This could likely be the real reason he could not hear Lumpy. Cuddles looks down at the cup Lumpy gave him and he somehow fails to notice the hot coffee inside. Later in the episode, when the tail of Flippy's helicopter starts turning, Cuddles stands still and screams when he could have easily run into his house for safety.
* Can't Stop Coffin: He climbs over a fence without seeing what is on the other side (in this case, a deep hole where he gets trapped in a coffin, burned, drowned, and subsequently killed).
* Breaking Wind: He stands out in the open while a tornado is coming, making no effort to take shelter or escape to a safer distance.
* You're Kraken Me Up: He does not see the tentacle controlling Giggles, even cheering when Lumpy "saves" her.
* Just Be Claus: He is dressed up as the Easter bunny on Christmas Eve (Debatable: according to Kenn Navarro, the holiday is not traditional).
==Giggles==
Like most characters, Giggles is blissfully ignorant and unaware of hazards until the last minute. She does seem to be narrowly smarter than the other characters, at least in common sense.
*Eyes Cold Lemonade: She stares at the falling sign instead of moving out of the way (Debatable as the sign falls too quickly for her to move). She also goes back to work on the lemonade stand instead of letting her face heal at home. She sips what she thinks is lemon juice, even though lemons taste bad on their own.
*Better Off Bread: She skips through flowers until, not watching where she was going, she falls off a cliff. (Debatable as the cliff might not have been visible under all of the flowers.)
*Kringle Tree: While mostly on Lumpy's accord, she unwisely stands in the spot where Lumpy is about to swing his axe.
*Kringle Karols: Even though she is surrounded by snow, she continues to scream in pain after her candle lights her on fire.
*Every Litter Bit Hurts: She puts a wooden hair brush into a plastic recycling bin. (However, she did not have a trash bin.) She also entrusts The Mole with a litter-picker, despite the latter being blind.
*A Change of Heart: She hands Lumpy the scalpel to perform the operation without telling him that Disco Bear was not given anesthesia.
*Sea of Love: Continues to hold an anglerfish after it bit her face off.
*Cold Hearted: She tries to kiss Cro-Marmot, despite him being encased in ice.
*Something Fishy: After Russell's Piranha jumps into her cup of water, she drinks out of it without looking inside first, thus leading to the piranha chewing her to death. (Debatable: Who looks in their drinks?)
*Breaking Wind: She stands out in the open while a tornado is coming, making no effort to take shelter or get away to a safer distance.
==Toothy==
Toothy tends to act on impulse, in terms that he chooses not to think before doing things. 
*Nuttin' but the Tooth: While performing dentistry on Nutty, he reads a book on how to perform the operation the whole time instead of actually reading it beforehand, and then pierces a needle all the way through Nutty's cheeks so that none of the novocain even enters him. He then makes a hole through the back of Nutty's head using a power drill. After that, he tries to remove a loose tooth by tying a string to it, removing Nutty's lower jaw in the process.
*Eye Candy: He runs across a path while holding a lollipop with his eyes closed, resulting in it getting lodged into his eye socket when he trips over a log.
*Class Act: As he flees in terror, he tosses a lit candle to a stage curtain, creating a fire that burns down the school. (Debatable as it was a reaction of panic.)
*Better Off Bread: He is oblivious to the fact that Giggles is dead when Splendid puts her down. He witnesses a shower of meteorites without making any effort to run for shelter, resulting in his death.
*From A to Zoo: He does not hesitate or panic when he should have been able to see the rhino charging in his direction, instead staying perfectly still.
*Kringle Karols: He attempts CPR on Cuddles by pressing on his stomach or even pelvis instead of his chest. Also, considering the damage, even correct CPR would not do much.
*Ipso Fatso: When his spotter is killed and when he realizes that his weights are too heavy for him, he drops the weights on his neck instead of behind him or to the side. 
*Who's to Flame?: He tries breaking the door down with an axe by throwing the axe at the door instead of repeatedly swinging at it.
*Take a Hike: He somehow does not notice he is tying a cobra to the stake instead of a rope.
*Mime to Five: Rather than the recommended two spoonfuls, he pours two whole barrels of gunpowder into a cannon. This leads to an explosion that kills him and splits Cuddles in half. (Debatable as Mime did not give very good instructions.)
*Junk in the Trunk: He walks in the middle of the road just to find his pet animal, only to get run over.
*Peas in a Pod: He stands perfectly still when a Pod Lumpy is about to cut him with an axe. He succumbs to the toxic gas instead of holding his breath or protecting himself in a safe place like Petunia's house.
*Cold Hearted: He tosses a snowball at Giggles just as she is about to kiss Cro-Marmot. This leads to Giggles' eyeballs getting stuck to the ice, forcing her to pull them out. (Debatable as this could have been a prank.)
*Brake the Cycle: He rides his bike despite the fact that a bolt is missing (which he clearly knew), leading it to fall apart and gradually killing him. 
*His Smoochie: He eats a rotten Easter egg that he clearly knew was rotten, leading to him vomiting violently seconds later.
==Lumpy==
Lumpy is considered by most fans as the least intelligent character in the series and is responsible for the majority of the stupid acts committed in the show. However, on closer examination, this may not be the case on some occasions.
*Spin Fun Knowin' Ya: He spins the merry-go-round so hard that it causes Cuddles, Toothy, and Giggles to fly off. (To be fair, they did keep telling him to spin it faster.)
*Wheelin' and Dealin': He wears a snorkel and scuba mask in a car race.
*Pitchin' Impossible: He gives The Mole some balls to pitch with, despite the fact that he figured out that the latter is blind.
*Treasure Those Idol Moments: He hits Flaky with his car in clear sight while she is in a playground. He also seems completely unfazed by the fact that he just killed another character.
*You're Bakin' Me Crazy: He brings Petunia a blood-covered cake and says "Merry Christmas!" at her birthday party.
*Meat Me for Lunch: He does not seem to care at all that Lifty and Shifty were killed, and uses their remains to make meat for his butcher's shop. (Debatable; Lumpy not caring that the raccoons were killed and feeding them to his customers could simply have showed his vengeful side. However, he looks surprised when Petunia realizes she was eating someone.)
*It's a Snap: He falls for bear traps baited with cheese. Later, after Splendid snaps them off, he falls for another bear trap; a big one, no less.
*Snow What? That's What!: He lies shirtless on a hammock with a drink in the winter. (Debatable as he seemed completely unaffected by the cold, just like real moose, and might have just been embracing it.)
*Happy Trails Pt. 1: He is not paying attention to the road (even walking away from the wheel), causing the bus to crash onto a deserted island. (Debatable; Petunia and Mime took his attention away from the road.) He also never thinks about hitting the brakes.
*Rink Hijinks: He wears skis instead of skates at a roller skating rink (to be fair, possibly for balance) while wearing boxers.
*Class Act: He instructs Toothy to go on with his act despite the other play actors' injuries (possibly done out of apathy, not stupidity). He also casts Nutty in a play that has a character dressed as a candy cane. (Debatable; it is unknown if anyone knew about Nutty's addiction at this time.)
*The Way You Make Me Wheel: He shaves while driving, resulting in his death, and Handy's death as well. He also tries to wipe down the blood on his windshield from the outside even though the blood was inside his windshield.
*I Get a Trick Out of You: He unintentionally suffocates a bird by keeping it in his hat for too long, saws Cuddles in half in an attempt to perform a magic trick, and later uses up the blood which Cuddles needed to survive. Lastly, he kills himself with a smoke bomb.
*Out on a Limb: He tries to run away from the falling tree when he could have just walked sideways to avoid being crushed. Later, he cuts off the leg which was not stuck under the tree instead of vice versa.
*Keepin' It Reel: He makes no attempt to escape Fliqpy even after the latter kills Flaky and Cuddles in front of the screen he was watching.
*Let It Slide: He wears Flaky's fur as a hoodie, not only not noticing (or ignoring) the fact that it is Flaky's fur but completely neglecting to cover his lower half, which is what the problem is.
*Icy You: He somehow gets his tongue stuck in hot dog rollers and continues working with his tongue still stuck.
*Remains to be Seen: He chooses a leaf blower over a chainsaw, or any of the other tools, to kill the zombies. (Debatable as Lumpy successfully defeated Flippy with said leaf blower. The leaf blower caused not only the death of Zombie Fliqpy, but also attracted all of the other zombies and caused them to die and be buried: something which would not be possible with a mere chainsaw.)
*From A to Zoo: He puts the dart inside the blowgun in the wrong direction, causing it to go down his throat and tranquilize himself. (To be fair, he may have been panicked and had no time to realize this error.) He also does not notice that a rhino's horn obviously went through Toothy's head and later mistakes a baboon for Sniffles.
*Ski Patrol: He messes up and causes the deaths of numerous characters. (To be fair, this was mostly the narrator's fault for misinterpreting the instructions, and the fact that the narrator continues to praise him even after such mishaps.)
*Kringle Tree: He smashes Giggles' head trying to chop down a tree with an axe. (On a side note, Giggles was standing in the way.)
*Kringle Feast: It takes him a long time just to start up a lighter. He then kills himself and the others from an explosion because he left the gas open for too long. (Debatable because to be fair, having a hard time starting a lighter is not in itself a sign of stupidity.)
*Ski Kringle: He skis over Sniffles and Toothy, killing them. (Debatable; he might have missed them because he plowed through their snowman, blinding his vision.)
*Strain Kringle: He throws a rock at Toothy and Cuddles thinking it is a snowball, killing them in the process. (Debatable because he might have done this on purpose.)
*The Wrong Side of the Tracks: He designs a roller coaster so poorly that it causes the deaths of the riders and himself. He also nails a wooden board to his ride with Mime impaled to it.
*Ipso Fatso: He moves his wheelchair directly in front of Disco Bear's running treadmill when he could have moved into the street or back into the diner. (Though, to be fair, he was already injured and most likely too scared to think quickly.)
*Don't Yank My Chain: He falls for Lifty & Shifty's disguises and arrests Handy and The Mole. He leaves the cell open with the keys near it. It takes him several seconds to realize that Handy and The Mole have escaped. He uses part of The Mole's sweater (a clue to finding them) to blow his nose.
*Doggone It: Even though he had Whistle and could have taken the dog back to his truck, he throws Whistle away out of anger for ripping off some of his skin. Even though he already figured out that whistling sets the dog off, he whistles with his own mouth after he gets the whistle out of his throat, giving away his hiding spot.
*Concrete Solution: He looks inside a nail gun and fires it. He uses a bag of sugar instead of cement to build a bridge (Debatable because to be fair, who would expect a bag of sugar to be mixed with a bag of cement? The cement bag and the sugar bag looked almost identical, and it may have been merely an honest mistake).
*Sea What I Found: He accidentally steps on the tube while pumping air to Russell. This one mistake results in the ship being destroyed and both of their deaths.
*Wishy Washy: He walks in with his shoes dirty, then exits and comes back in only to realize that there is a mat underneath him. He takes his plunger to push the giant wad of toilet paper and the last remaining toilet paper to unclog Petunia's toilet, however, dirty water erupts from the toilet like a volcano, and he's removing the giant wad of toilet paper and the last remaining toilet paper with his hand (Debatable Lumpy removes his arm from the toilet revealing he has removed a large clump of fur). When Petunia chokes on a glove, he puts his plunger on her mouth in order to help her (Debatable because between the extreme issues with Petunia's toilet and her now choking, he was in a state of panic and tried to act very quickly on impulse). He pulls his pipe out of a water heater, which results in an agonizing death for him.
*Who's to Flame?: He plays with a lit match, which is ironic considering his fireman job (Debatable; he is playing in such a way that will not cause disasters. However, playing with fire at all is dangerous).
*Every Litter Bit Hurts: He dumps garbage and junk all over the water, angering Giggles, forcing her to hire a clean up crew. Later, he uses dynamite instead of a fishing pole in the lake to catch some fish as well as killing them, until an angered Giggles gives him a fish pole.
*As You Wish: He sets Cub on fire and gets him run over by a fire truck (Debatable; it really depends on how Pop worded his wish - which seems to have been for a "hot ride" - as Lumpy was able to successfully grant Nutty, Disco Bear and Sniffles' wishes).
* Take a Hike: He uses up all of the drinking water for shaving instead of using the water that was in the lake. He does not pay enough attention to the group. He takes a nearly broken bridge over a strong one. (Debatable as this was out of fear, so he was not paying attention or did not notice.) He repeatedly douses Sniffles underwater when only one splash would have been enough to put the fire out. He attempts to save Nutty's remains despite the fact that the latter is definitely and obviously dead.
*Dunce Upon a Time: He almost chops off one of his fingers with a knife. He sticks a fork into a plugged-in toaster no more than three times in order to get Flaky out.
*A Change of Heart: He repeatedly loses the normal-sized hearts due to a lack of attention. He rides his bike in the middle of the road, which is illegal and dangerous. When Lumpy starts to suffer from a heart attack, he takes another bite out of his cheeseburger.
*A Hole Lotta Love: He spends most of his time eating cans of beans instead of helping Pop and Sniffles, which resulted in him rushing to an outhouse.
*Blast From the Past: He repeats his act from Spin Fun Knowin' Ya.
*See What Develops: He sends The Mole to take pictures for the newspaper, despite the latter being blind.
*Idol Curiosity: He mistakes some ice in Toothy's drink for an iceberg. (However, he was looking through a telescope, and the image he saw gave a wrong impression.)
*Home Is Where the Hurt Is: He folds the blueprints of Giggles' new house into an origami crane. (Debatable; he may have just done this selfishly, looking for a replacement for his broken one.) Later, he connects electrical pipes to normal pipes for the shower, which electrocutes Petunia later.
*Aw, Shucks!: He eats a moldy piece of bread. He unintentionally destroys his house while trying to kill a crow and mistakes Toothy's corpse for his scarecrow. (Debatable; he may have been perfectly aware that it was Toothy's body but did not care, thinking that his body would be a good scarecrow since his original scarecrow was gone.)
*Letter Late than Never: He reads somebody else's mail. He eats a box of chocolates that doesn't belong to him. He blows his nose on a letter. He puts on a sweater that was supposed to be for Giggles. He briefly forgets that he is being chased by a murderous turtle when he stops to eat a sandwich that he pulled out of the mail. He sticks what he believes to be a package through Cuddles’ mail slot when it would have made more sense to just leave it at the front of the door and knock.
*Wingin' It: He brings a sharp knife into an airport and openly uses it. He uses many electronics, despite Mime telling him not to. Later, he takes all five parachutes and then fails to properly wear even one of them.
*Tongue in Cheek: He hits Sniffles in the head with a golf ball (Debatable, as he might not have noticed him before doing the hit from far away). He steps on Sniffles's tongue, preventing the latter to finally catch the ant he was chasing, and he also mistakes the skin from Sniffles's hand for a glove (even though he already has his glove and only one is required to play golf) and Sniffles' organs for a mini-golf course.
*Easy Comb, Easy Go: He goes to a hair salon to get a shave even though he doesn't have any facial hair at all, and as a result, has his skin around his face torn off.
*I've Got You Under My Skin: He pokes the tip of the laser of Sniffles' invention, causing him to be electrocuted. He tries to stop Sniffles from traveling further up his body but ends up severing his leg. (Debatable; this was a weird and unexpected result to a somewhat logical attempt.) He is also shown to have numerous strange items, including a plane propeller and a bear trap, inside his pockets (Debatable as these were possibly for the numerous jobs that he has).
*Junk in the Trunk: He places a strip of tape on the lid of his washing machine, thinking it would hold shut. It takes him a long time to realize that the elephant in Lifty and Shifty's van is the one he put on his missing elephant poster. He chooses a pogo stick over a race car or a motorcycle to chase after the thieves. (Debatable as the pogo stick offered more versatility. In addition, he was able to catch the van with said pogo stick and was able to use it to enter the van: something that would not be possible with a race car or a motorcycle).
*Hear Today, Gone Tomorrow: He does not realize that his can is on his butt and runs to get some new things. He later tries to use a trombone as a hearing aid, tries to phone the hospital despite being deaf, wears a birthday hat the wrong way (Debatable as it was likely simply a difficult task to get it around his antlers and Lumpy doesn't really seem to have a chin), and tries to phone for help using a can telephone, again despite being deaf.
*Double Whammy Part I and Part II: He hypnotizes himself, making him act like a chicken. This is later seen in part II, where he is inside a chicken truck trying to lay eggs.
*Seize the Day: He uses a defibrillator on Cuddles while he is having a seizure, resulting in his death.
*Happy New Year: He crashes into Flaky and Russell, crushes Cuddles with a car door, and somehow gets film wrapped around his body. (To be fair, though, he was in a rush.)
*Moppin Up: He forgets (or neglects) to put a "wet floor" sign up while mopping, causing Sniffles to slip and break his skull. (Debatable; he was currently in the process of mopping, so the sign should not have been necessary, and considering Sniffles did not notice Lumpy mopping, he certainly would not have noticed the sign.)
*Can't Stop Coffin: He buries what was originally an empty coffin, fills the hole with water, and leaves his truck in reverse, driving it into the grave and crushing Cuddles.
*Just Desert: He wears winter attire in the desert. He goes to the desert without bringing any food or water, which would still be a problem even if he did get to the snowy environment he expected.
*All Flocked Up: He accidentally steps on one of the switches of the control panel and has his nose scraped off by the bark of the tree. He tries to pop his balloons with a rock, but accidentally throws it at Toothy, causing the latter's face to land in hot tar. (Debatable as this may simply be bad aim)
*Something Fishy: He mistakes the bowl for Russell's Piranha for a helmet and puts it over Russell's head.
*I Nub You: He sews Handy and Petunia together, and ends up sewing his own arms on them. (Debatable as he likely was just missing body parts and was really just trying to find a way to keep them both alive, that being the only option).
*See You Later, Elevator: He tries to use an elevator during a fire, which is not safe. He tries to resuscitate Cuddles despite the fact that the latter is missing his upper half.
*Milk Pong: He chokes on a ball, later drinks bleach instead of milk, does not notice a rat in his cup (twice) (Debatable; like with Giggles, who really looks in their drinks?), and tries to get a ball out of a wood chipper with his bare hands.
*The Chokes on You: He eats donuts while working. (Debatable; this could be considered more lazy or selfish.) He forgets to chew on a donut and almost chokes. After he saves himself from choking, he eats the same donut, again forgetting to chew, and chokes again, resulting in his own death.
*Brake the Cycle: He spills too much gasoline while pouring it into his motorbike, which causes him to burn to death.
*All In Vein: He leaves Giggles in the fridge for too long, causing her blood to harden. (Debatable, because who has not done this with food items?) It is also shown that he made the same mistake with Lammy and Truffles. He later drinks too much blood, causing him to go overweight and preventing him from flying.
*No Time Like the Present: He brings Handy a pair of mittens, which is ironic considering the latter's lack of hands. (Debatable; he might not have even been the one to wrap or choose the gift, or it was a mix-up.)
*You're Kraken Me Up: Instead of rescuing Russell, he saves the squid tentacle with Giggles' head on it, thinking it was Giggles. He makes a similar mistake later on by feeding a bottle of milk to Cub's head attached to a tentacle.
*All Work and No Play: He attempts to save Nutty by jack-hammering the top of the concrete block, resulting in Nutty's torso getting completely mangled. He later saves Sniffles but is distracted by Lammy, resulting in Sniffles getting smashed to pieces by the excavator's buckets closing in on his head.
*A Vicious Cycle: He eats chips out of Disco Bear's brain. (Debatable as he seems to be completely aware of doing so.) While hiding from the possessed tricycle, he bites into a chip, the crunching noise blowing his cover.
*Dream Job: He messes with the television so much that Sniffles' dreams become erased and the TV turns off. (Debatable as the device looked very much like a TV, and there was no sign anywhere that would show otherwise, or that it was a dream machine). After the TV shuts down, he throws Sniffles' TV remote on the ground and leaves the room without ever doing what he came to do in the first place: cleaning Sniffles' room. (Debatable as Lumpy may have been simply lazy.)
*Just Be Claus: He was originally going to bring Petunia a ring with a piece of coal on the head.
*Too Much Scream Time: While he notices that his plunger was replaced with an arrow, he chooses to use the arrow to unclog a toilet. He also fails to notice Pop's dead body next to the burrito he found laying on the ground, and despite the burrito being soaked in blood and covered with Pop's brain matter, he still eats it regardless.
==Petunia==
Petunia commonly makes mistakes, mostly caused by her OCD. However, she appears to be very unintelligent, making mistakes comparable to Lumpy on many separate occasions.
*Pitchin' Impossible: When The Mole's pitching goes wrong, she simply stares rather than moving out of the way.
*Eyes Cold Lemonade: She stares at the falling sign instead of moving out of the way. (Debatable as the sign falls too quickly for her to move.) Though, after what happened to Giggles, the two of them should have agreed to simply stop using the lemonade stand.
*Wishy Washy: She washes her hands without using soap and only puts her hands in the sink for a few seconds, all after she has taken a shower. She keeps a mat that guests are supposed to wipe their feet on in the inside of her house instead of outside. She also downs a whole bottle of mouthwash: an act that could have killed her. She later attempts to breathe into a glove and chokes herself. After getting increasingly dirty trying to get clean, she runs upstairs to take a shower again, but nothing comes out, washes her hands with dirty water from the bathroom sink and the kitchen sink/sink sprayer, and resorts to skinning herself with a potato peeler. (Debatable as she committed suicide and had completely lost her stability at this point.)
*Who's to Flame?: She leans on a burning stove while talking on the phone, resulting in her tail catching fire. (Debatable as she was not paying attention, though this could be considered stupid in itself.) Despite being the owner of the house, she runs around while on fire instead of using a bathtub or a sink to put the fire out.
*Take a Hike: She drinks contaminated water when she could have ran back to the lake. (To be fair, she was dehydrated, and the lake could have been at too far a distance at that point.)
*A Hole Lotta Love: She does not pay attention while driving, causing her to nearly run over Mime.
*Home Is Where the Hurt Is: She trusts Lumpy with pipes.
*False Alarm: She rides her bike in the middle of the road (which is both illegal and unsafe), leading to her death.
*Peas in a Pod: It takes her several seconds to realize that she had lost an arm. Later, she just stands there screaming rather than attempting to run away. (To be fair, she was in a panic.)
*Something Fishy: Considering how concerned she is with being clean and hygienic, she should have chosen a stall that actually had toilet tissue. This is even worse when it is shown that even when she sees blood coming from the other stall, indicating that she might be in danger, she will not leave a toilet if she cannot wipe.
*I Nub You: She and Handy go somewhere that requires hands even though she lost them, she, along with Handy, uses her body as a bowling ball, resulting in both of them being crushed by pinsetters.
*My Better Half: Judging by the angle she is in, she could have warned Handy to jump out of the boat before he died. Instead of jumping out of the boat, Petunia just screams and lets herself get sliced in half.
*Royal Flush: She tries to suck an entire pickle through a vacuum and acts confused when it gets clogged.
*Breaking Wind: Probably her most well-known blunder: she strikes a match in the middle of a gas cloud induced by Splendid. As a result, the earth is set aflame, killing presumably billions, including herself.
*You're Kraken Me Up: She rests right underneath Lumpy's lifeguard chair, resulting in her getting decapitated.
*Camp Pokeneyeout: She pulls on a slingshot while her hands are covered in grape juice, resulting in the slingshot slipping out of her hands (one of them being sticky.) and impaling her in the eyes.
==Handy==
Handy does not make as many mistakes as the other characters. In fact, he is one of the most intelligent characters, though even he has his moments.
*Shard at Work: He fails to take caution on where he is walking, resulting in him stepping on a glass shard.
*Don't Yank My Chain: He trusts The Mole to use a mallet to hit a chisel Handy is holding between his teeth. He does not monitor The Mole's blind use of a saw and instead looks in the opposite direction. He could also have looked for someone working at the sawmill to remove his chains. Instead, he attempts to cut off the chains using a train. (Debatable as he may have looked offscreen and found no one. Besides, he didn't count on the train being equipped with a pilot, in which the chain ends up getting stuck and starts dragging him along with it).
*Who's to Flame?: He drops what he thinks is water on the sidewalk instead of over a burning house, killing three characters in the process.
*A Hole Lotta Love: After realizing that he cannot twist the wheel to turn the gas off, he lets himself succumb to the gas instead of simply holding his breath or running away before it was too late.
*Home Is Where the Hurt Is: He invited Lumpy and The Mole to build Giggles' home. (Debatable as Lumpy was not involved in the discussion on what to do, so he may have been there by chance.)
*I Nub You: He and Petunia go somewhere that requires hands even though they don't have any. He, along with Petunia, uses his body as a bowling ball, resulting in both of them being crushed by pinsetters.
*Pet Peeve: He walks in the middle of the street with his eyes closed, which results in him getting stuck in a hole left by the blob. (Even if he did not fall into the hole left by the blob's slime, he would likely have ended up dying the same way he did later in the episode.)
*A Handy Nanny: He tries to spit a pacifier into Cub's mouth from a distance, resulting in it ricocheting into Handy's eye.
==Nutty==
Nutty has done many things that endanger his and others' lives, mostly because of his candy addiction and the fact that he always acts before he thinks, suggesting that Nutty's intelligence is quite low.
*Nuttin' Wrong with Candy: He eats some of the candy that is supposed to be his clothing. Later, he starts to violently rock the vending machine back and forth, causing it to fall down on him, which eventually lead to his death.
*Class Act: He bites a chunk off of Sniffles' body, who was dressed in a candy cane costume, causing the play to spiral out of control.
*Icy You: He decides to drink directly out of the slushy machine. When his lips freeze, he keeps pulling instead of finding a way to thaw the ice, thus leading to his lips getting ripped off of his face.
*Stealing the Spotlight: Seeing a string of Christmas lights as candy, he swallows them and gets disemboweled by Lumpy as a result.
*Party Animal: He doesn't stir the punch when he put sugar inside, but keeps adding more sugar to it causing him to waste a whole bag of sugar.
*Concrete Solution: Hanging onto the edge of a bridge for dear life, he begins eating it after realizing it is made of sugar. It comes to the point where he bites off the one last bit of the bridge holding the two halves together, leading to him being violently ripped in two.
*As You Wish: Attempts to eat an obviously giant lollipop in one bite, choking him to death.
*Chew Said a Mouthful: He fractures his jaw trying to bite down on a jawbreaker, bites off his tongue, cuts his braces loose, puts a jawbreaker in a blender, and causes several deaths (including his own) in an attempt to get the confection back. After losing his lower jaw to a car magnet, instead of jumping off of the car he is standing on, he runs in circles and screams, making no effort to get away from certain death. This candy is either indestructible or stone-harded to eat it.
*Aw, Shucks!: He, along with Sniffles and Mime, makes no attempt to take cover despite seeing the giant corn shoot popcorn all over the place and stands perfectly still when a piece flies at him. (Debatable as it could've been moving too fast for him to react) He was even eating his own caramel apple in the competition he is in, resulting in him losing.
*Wipe Out!: After dropping his ice cream into a tidal pool, he mistakenly puts a sea urchin into his cone and bites into it. He then tries to reach for the ice cream instead of getting out of the water and drowns as a result.
*Double Whammy Part I: When Fliqpy is squirting water in Nutty's mouth, he keeps his mouth agape the whole time, when he could have just swallowed or spit out the water or closed his mouth to avoid death.
*A Sucker for Love Part 1: Upon bashing a gumball machine open, he places a handful of gumballs into his mouth, along with shards of glass. He gets his teeth and gums cut, followed by his face when he blows a gum bubble.
*A Sucker for Love Part 2: He licks the glass when he sees the box of chocolates, he is unaware of the germs on the glass. When he sees the ambulance driving towards him, he tries to run directly away from it instead of simply running off the street.
*Swelter Skelter: When he finds out what Lifty and Shifty want to do with him, he walks backwards, causing him to lose his balance and have his head cracked open. (Debatable as him walking backwards was a reaction of fear, and him falling on the ground was Lifty and Shifty's fault since they tripped him)
*Bite Sized: He tries to bite down on a jawbreaker, see above.
*Random Acts of Silence: Despite there not being an emergency, he, along with Sniffles, tries to sneak out through the fire exit. Furthermore, when the alarm goes off, they do not even exit, instead standing there and staring. Later, when Sniffles is killed, he just panics rather than running off.
*All Work and No Play: He, along with Lammy and Sniffles, decides to play on a playground that is clearly still under demolition. In particular, Nutty rides on a swing-set located dangerously close to a bunch of large nails, causing him to get impaled on them.
*Camp Pokeneyeout: After eating his first eye, he liked it so much that he deliberately pulled his other eye out to eat it.
*Going Out With a Bang: Nutty fails to realize that the box he is eating from is filled with fireworks, which results in a bad stomach and the deaths of four characters, including himself.
== Sniffles ==
Despite being considered one of the most intelligent characters in the series by most, Sniffles has made many illogical mistakes thanks to his lack of common sense. Some derive from his complicated inventions, which are plagued with oversights Sniffles does not notice until it is too late. To be fair, many of his mistakes double as stupidity and intelligence.
*Tongue Twister Trouble: He uses his tongue to catch an ant on ice; it would have stuck to the ice even if the ant had not moved.
*Spare Me: He attempts to toss a bowling ball using his snout, leading to his head being torn off.
*Happy Trails Pt. 2: Jumping the Shark: He builds a rocket to get off the island when a ship would have made more sense. He also designs said rocket so strong that it can go all the way to the Sun and cannot be diverted from this course.
*A Hard Act To Swallow: He does not chew the baby ant he managed to swallowed, which soon bites him in the back. He also could've attempted to eat the other Ants when they nailed him to the tree and would be able to easily chew them up as well. Moreover, he should've beat them up with his tongue when they were entering his mouth.
*Suck It Up: He gives his invention a flexible nozzle, which can get stuck to the side of his head with the other side still attached to his face. He also does not try to remove it from his face at any point during his torture session.
*His Smoochie: Since he created the growth serum, he should have known its effects and not have drunk it. Rather, he should have poured it on his body if he wanted to grow himself, though it is possible that that would have still killed him by having his skin grow while his insides stay at their regular size.
*Party Animal: He bobs for an apple with his mouth and spits the same apple back in the barrel. Also, he does run away after Toothy is killed, but it is unknown what he was doing during Cuddles, Nutty, and Mime's deaths. He had plenty of time to leave the house. He uses a barrel filled with water as a hiding spot, almost causing him to drown, instead of simply running out of the house.
*Concrete Solution: Carrying Nutty in an ambulance, he forgets to strap down his patient's gurney. He finally attempts to do so while still driving his vehicle, causing a crash as well as his death.
*Every Litter Bit Hurts: He just watches as The Mole stabs his foot with a litter pick, not making any attempt to move his foot. (Debatable as The Mole stabbed it very quickly)
*Take a Hike: He runs around randomly while on fire instead of stopping, dropping, and rolling on the ground or heading for the lake.
*Dunce Upon a Time: Though this does not kill him, he, along with Cuddles and Flaky, runs dangerously close to Giant Lumpy for no reason after Mime's death. He visibly and audibly moves in his hiding spot, giving his location away to Giant Lumpy.
*A Hole Lotta Love: He lets The Mole make and lead with the map. He designs a lookout post that is not shatter-proof, causing The Mole's head to burst. He uses a wrench on a screw instead of a screwdriver.
*Mime to Five: He goes in water too deep for him to touch the bottom.
*Blast From the Past: After dropping a glass of milk, he decides to build a time machine rather than clean up the mess and replace the glass of milk. In doing so, he creates various time anomalies. After catching Cuddles in a plane, he turns all the way around to check on Cuddles while still flying the plane. He also lands the plane right in front of Giggles twice, resulting in two of her three deaths.
*Idol Curiosity: He keeps carrying the idol with him despite seeing all the disaster it is causing. Later, he tries to stop an earthquake from entering the museum by barricading the doors.
*Aw, Shucks!: He, along with Nutty and Mime, makes no attempt to take cover despite seeing the giant corn shoot popcorn all over the place and stands perfectly still when a piece flies at him. (Debatable as it could've been moving too fast for him to react, and Mime and Nutty were also blocking his view)
*A Sight for Sore Eyes: When he sees something coming his way but cannot tell what it is, he stands in the way and tries to figure out what it is instead of moving out of the way.
*Wingin' It: Similar to Blast From the Past, being the only pilot operating a plane, it is rather unwise of him to encounter Lumpy personally. He could have simply spoken to Lumpy via the speaker.
*Tongue in Cheek: Even after being painfully tortured once in the episode, Sniffles' determination to eat the Ants consumes him, and he tries to use a mind-control helmet and robot to do the job. The Ants once again get the upper hand and kill him in a gruesome and agonizing way. This happens in other episodes, but the show's lack of continuity is not here to justify it.
*I've Got You Under My Skin: He faces away from the door for no real reason while waiting for Giggles to answer, so if she was inside, she would have just been staring at his back. Despite staring right at her (unlike Lumpy, who was understandably focused on the door), it takes him a long while to realize he is looking at Giggles buried in the snow. Considering his intelligence, Sniffles could have helped Giggles by taking her to a hospital. Instead, he uses a shrinking submarine that comes with a timer indicating how long he will stay microscopic (which he could have turned back to keep himself that size until the job was done, which he never does). He flies right through Lumpy's optic nerve instead of around it. He also does not consider that the brain he witnesses is small, something that would fit someone's low intelligence (namely Lumpy's) Also, when he climbs out of the machine, he steps on the timer, causing the submarine to shrink on himself, severing his lower half. Lastly, he crawls to a first aid kit for help, despite how incredibly severe his injury was.
*In a Jam: He shoves cymbals inside Handy's mouth when the latter is having a seizure, leading to Handy's death. (Debatable because Sniffles placed the cymbals in Handy's mouth to prevent him from biting his tongue off.) With his medical experience, Sniffles should have known that he was supposed to take away Handy's hammer and screwdriver so he does not get hurt from them; turn off the strobe lights, and wait it out.
*False Alarm: He either gives or lets Nutty take a chainsaw into his padded cell. (Debatable; he may not have done that and/or it could have been for psychological examination.)
*Peas in a Pod: He blatantly walks right into a Pod Lumpy and, as the Blurb points out, he would have walked into the wall if that Pod Lumpy was not there.
*Wrath of Con: He does not try to sneak past the blind security guard. (Debatable; he could have not snuck past the guard out of respect for the blind.) He keeps his ticket in his pocket when it is supposed to be around his neck and forgets it is there. He asks Splendid for an autograph while the latter is busy holding up a chunk of debris. (To be fair, this could also count as part of Splendid's accord.)
*Something Fishy: He puts his hamster right next to Russell's piranha (Debatable). He also does not even notice the fishbowl on Russell's head instead of the helmet.
*See You Later, Elevator: Instead of waiting for Lumpy the firefighter to come, he walks out of the elevator, not noticing that the elevator behind him slices him in half vertically. (Debatable as the doors moved too fast for him to react)
*Moppin Up: With a big puddle visible on the floor (and Lumpy in the process of mopping it), Sniffles should have watched where he was going or walked more carefully.
*Random Acts of Silence: Despite there not being an emergency, he, along with Nutty, tries to sneak out through the fire exit. Furthermore, when the alarm goes off, they do not even exit, instead standing there and staring.
*All Work and No Play: He, along with Lammy and Nutty, decides to play on a playground that is clearly under demolition. In particular, Sniffles goes down a slide despite it having holes in it, causing his body to be grated like cheese and slide right into wet cement.
*Buns of Steal: He rides his bike in the middle of the road (which is both unsafe and illegal), leading to his death.
*Pet Peeve: He brings the Blob out in public and lets it hump Lumpy's leg, despite knowing the danger. He then walks the blob in the middle of the street. Finally, similar to Concrete Solution, Sniffles does something without stopping the car first. In this case: checking on his pet after it makes a hole through the floor. This sends the vehicle into a sidewalk where his head is sliced off.
*Dream Job: He designs his dream machine in a way that makes it possible for someone else (case in point: Lumpy) to change his dreams by simply flipping through channels with a TV remote.
==Pop==
Almost earning a reputation similar to that of Lumpy, Pop's stupidity derives from his incompetent parenting, low attention span, and obliviousness, which is usually the cause of most of Cub's and occasionally others' deaths and injuries, and sometimes his own.
*Havin' A Ball: He crosses a road full of speeding vehicles to get Cub's ball back. After managing to retrieve it, he does not watch where he is going, falls down a cliff and gets cut to pieces by the rotor blades of a helicopter. It is unknown why Pop chose to walk forward when getting back to Cub would require him to turn around.
*Chip Off the Ol' Block: He runs his lawnmower over various sharp objects, resulting in Cub getting pierced and eventually killed by said sharp objects when they get shot out of the ejection port. He is unaware of Cub's death and sets the pile of leaves that Cub's remains fell into on fire.
*Snip Snip Hooray!: He accidentally cuts off one of Cub's ears with scissors. He then leaves Cub unattended with an electric razor, paying no attention as Cub puts it in his mouth as he activates it. He is oblivious to Cub's following death (Debatable as he did not know Cub had it in his mouth, but either way, he should have been paying attention).
*Water Way to Go: He buries Cub in sand from the neck down and leaves him to get ice cream. Cub then gets submerged in high tide and Pop believes his son has been washed out to sea. He brings a boat on the water, running over Cub's head and ultimately shredding him to death with the motor.
*Stealing the Spotlight: He shoves Cub's tooth through his upper lip instead of back into his gums (Debatable because the tooth would not stay in his gums. Cruel nonetheless.) Later, as a bucket of nails falls on Cub's head (due to him not noticing that it was sliding off the roof), he pulls the nails out of Cub's head with the claw of his hammer, but when one would not come out, he decides to push it in deeper, despite Cub's cries of pain.
*From Hero to Eternity: He lets Cub play with a bottle of either liquid detergent or bleach. He is also blissfully unaware to Cub as he wanders around the laundromat, leading to Cub’s death.
*And the Kitchen Sink: He watches Cub scream in the garbage disposal for a whole nine seconds before turning it off, resulting in Cub getting stuck in the drain and his bottom half being completely removed. He accidentally sends Cub rolling down a hill in a wagon, goes through a garden of cacti instead of around it, leaves Cub unattended in the sink until his fur is burned off, breaks one of Cub's bones, almost kills him again by using his car, and causes him to drown by once again leaving him unattended.
*Concrete Solution: He can be seen driving through the damage of the destroyed bridge, but he completely fails to look at all the damage and destruction around him. He is also oblivious to the fact that Cub is crushed by Nutty's concrete stomach, and mistakes the stomach for Cub just because it is wearing his beanie.
*Easy For You to Sleigh: He disables the fire alarm instead of simply resetting it, leading to his and Cub's death due to carbon monoxide poisoning when the smoke from the chimney fills up the room.
*Who's to Flame?: Even if he is fully aware of Sniffles' death and the falling ladder, he ignores the destruction and moves Cub aside to prevent him from being sliced by the ladder, in which he failed. He had plenty of time to run away so that he could save both of their lives before anything bad could happen (since the falling ladder could have possibly killed him instead if he just stood there).
*Every Litter Bit Hurts: He, for whatever reason, lets Cub sit on a rock in the middle of the water. He fails to notice Cub choking on litter and mistakes his remains for trash.
*Mime to Five: When Mime turns up the audio feedback, making Pop and Cub's ears bleed, he never considers driving away. (Debatable as he did attempt to close the window but did not know that it would not work. Besides, he was in serious pain before he could drive away or do anything else.)
*Read 'em and Weep: He kills Cub after he is turned back into his normal self after The Demon that possessed him was removed by Lumpy (Debatable as he did not see Lumpy remove it).
*Chore Loser: He plays with a portable game system and remains completely oblivious to the fact that Cub is getting torn to pieces by a dog outside, even when the dog comes in carrying one of Cub's limbs in its mouth.
*See You Later, Elevator: He tosses a lit match out of a window, which gets blown into the lower floor and causes a fire.
*Pop & Corn: He fails to notice that his son is choking on a large quantity of popcorn; he even shushes him after he dies of asphyxiation. (Debatable as he was focused on the movie, but nevertheless, he should have been more attentive).
*Clause For Concern: He tries to put the presents in the boot of the car and repeatedly smashes them with the trunk door instead of simply pushing them further and then closing the door. He eventually drives with the presents mostly sticking out. He accidentally places a string of sausages in his bag of presents. He also crushes Cub by closing his front door on him. (Debatable; he had no way of knowing Cub was on the other side.) He also leaves Cub home alone completely unattended despite the latter being nowhere old enough to take care of himself.
*Bottled Up Inside: He stops in the middle of a crosswalk to pick up a coin, allowing Cub and a good part of the stroller to be hit by Russell's car, to which he remains completely oblivious. He is also oblivious to the fact that his water container has Russell's corpse in it, and fills a cup with his blood.
*Cubtron Z: He encourages Cubtron (who is much bigger than him) to sit on his lap, leading to his own death.
*Going Out With a Bang: When he notices that Cub got impaled by a firework and it starts to circle around him, he doesn't let go of his baby leash, allowing himself to get crushed to death. (Debatable as he could have been shocked over the death of his son, and he had no time to react at all.)
*A Handy Nanny: He hires Handy to babysit Cub instead of a character with hands. He places Cub down on a counter and leaves him there by himself while he answers the door. Later in the episode, for some reason, he does not notice the blood splattered on Cub's face or around the floor when he opens his eyes.
*Too Much Scream Time: He leaves Cub unattended twice, while he goes to the bathroom to deal with his diarrhea. The first time he leaves Cub unattended, he places him in front of a giant TV, not noticing the violence of the game that he gave Cub to watch. He takes a sharp arrow away from Cub, but instead of taking away the bow as well, he replaces it with a plunger that he stole from a plumber.
==Cub==
Even though he is just a baby, Cub has done some stupid things that either gets himself killed or could have. However, since he is a baby, his age is at least an excuse for him to not be considered as a stupid character.
*Treasure Those Idol Moments: He could have moved out of the way before the giant boulder killed him. (Debatable; he probably did not think quickly as the boulder was quickly rolling down.)
*Rink Hijinks: He should be aware that Lumpy is in the machine, but he accidentally kills Lumpy and fails to realize that he removed Lumpy's heart.
*Snip Snip Hooray!: He sucks on the shaver, which later gets himself killed.
*Stealing the Spotlight: He is holding a hammer, which isn't safe for somebody his age. He also does not know that Pop placed back his tooth in the wrong place.
*Kringle Presents: As he is watching his toy train, he is drooling, causing the drool to touch the electric track and electrocute him.
*Pop & Corn: He attempts to swallow a large quantity of popcorn in his mouth at once, causing him to choke to death.
*From Hero to Eternity: He plays with a bottle that seems to be bleach, which is dangerous. He later hides inside a laundry basket, leading to his own death.
*And the Kitchen Sink: He does not call for his dad when the water is rising in the bathtub, causing him to drown.
*Don't Yank My Chain: He laughs at Handy when he gets hurt, not noticing how horrible it must have been for him.
*Doggone It: He wants to keep a vicious looking dog inside a cage, which does not look like a safe dog to keep.
*Who's to Flame?: He does not get scared or shocked when Sniffles dies. (Debatable; he might not have noticed or even looked at Sniffles.)
*As You Wish: After being set on fire, he runs out onto the road, causing him to get hit by a fire truck. (Debatable as he was on fire, he was in great pain and probably could not think of something else).
*A Hole Lotta Love: He goes near a well, which is dangerous as he almost falls down it. He should also have told Pop that he would like some ice cream rather than leaving his hat on the ground and going away, causing Pop to think that he fell down the well. He should have later moved out of the way to not get run over by the drill machine.
*Letter Late than Never: He decides to hide inside a box, causing him to be lifted away from his home and also accidentally killed by Lumpy later.
*Wingin' It: When the escape door in the plane opens, he seems happy despite the fact that he will probably die when he falls down from the plane.
*You're Kraken Me Up: He shows no sign of shock or fear when Petunia's severed head lands right next to him. (Debatable; he might have thought that Petunia was buried in the sand just like Pop).
*Cubtron Z: After his bottle of milk slips from his hands, he goes to get it back by himself right in the road. As Cubtron, he uses Cuddles, Giggles, and Petunia as crayons to write on a skyscraper. He also later seems to forget that Pop is smaller than him, crushing him in the ending of the episode.
*A Vicious Cycle: He shows no sign of fear when he is facing Fliqpy right in front of him, rides his tricycle inside the house, does not seem to be shocked when Disco Bear dies, and does not wonder where his father is, still riding his tricycle inside the house.
*A Handy Nanny: He leaps off of the counter, causing him to get a bruise on his forehead, and then laughs when Handy gets a pacifier stuck in his eye.
==Flaky==
In contrast to the blissful ignorance of most characters, Flaky is known for being very cautious about her surroundings due to her cowardice; thus, she can be considered as one of the wiser characters. But even she has made mistakes.
*Water You Wading For: She tries to save Cuddles with a stick that does not reach even remotely close to him. Later, she throws a lifesaver to his remains. (Debatable as she was aware that it was a no swimming zone.)
*This Is Your Knife: She witnesses Fliqpy killing Cuddles and Giggles and makes no attempt at fleeing. She also zips herself in her sleeping bag when Fliqpy notices her. (To be fair, she was too afraid to escape and Fliqpy would've most likely caught her anyway.)
*Happy Trails Pt. 2: Jumping the Shark: She forgets that she is in an inflatable life raft, and leans back and pops it, resulting in Lifty and Shifty getting eaten by a shark.
*Ski Ya, Wouldn't Wanna Be Ya!: After unwillingly arriving at the top of a mountain, via the ski lift, despite her fear of heights, she decides to jump off the ski lift, instead of letting the ski lift safely take her downhill. After getting scared from the altitude, she starts walking backwards, without looking where she is going, and impales her foot on a nail (and if she hadn't impaled her foot on the nail, she could've fallen off the top of the mountain). After successfully jumping over a small rock when running away from the avalanche, she looks back at the rock she jumped over, completely failing to avoid hitting the second small rock that was in front of her, which leads to her death.
*Let It Slide: Considering her fear of water, it is odd for her to even go to a water park in the first place. (Debatable as Cuddles likely could have dragged her there.)
*And the Kitchen Sink: She does not question what the very visible rope behind Pop's car is connected to.
*Party Animal: She turns on a blender without putting a lid on the top. She stands on the top part of a ladder where it warns you not to and does so with no one stabilizing it, both of which are extremely dangerous. She eats a peanut even if she is allergic to them, causing her to suffer an allergic reaction. (Debatable as she might have not known her peanut allergy up until that point.) She does not close her eye when The Mole is about to poke her with a needle.
*Dunce Upon a Time: Though this does not kill her, she, along with Cuddles and Sniffles, runs dangerously close to Giant Lumpy for no reason after Mime's death. She chooses a toaster as her hiding spot, setting the likelihood to be either intentionally or accidentally burned to death. She also visibly and audibly moves in this hiding spot, giving away her location to Giant Lumpy.
*Mime to Five: Despite her knowing that she is in a spot where she could easily fall and does not have that much walking space, she decides to walk around blindly when Cuddles' blood gets in her face, instead of staying perfectly still and wiping off the blood.
*A Change of Heart: She plays goalie during a soccer game, despite her being afraid of objects flying towards her. (Debatable as she may have wanted to play soccer but all of the other spots on the team were taken. But, then again, she appeared to be afraid of the ball or being hit by it.)
*Wipe Out!: As in Let It Slide, it is hard to imagine why she entered the surfing contest in the first place. Perhaps she wanted to try being brave. Also, she fails to notice that her surfboard is covered in blood, or the blood where Handy died.
*Wingin' It: Despite the fact that she does not want to board the plane, she does so anyway without her luggage, making her flight completely pointless. Lumpy did push Flaky into the airport, but she could have left when he stopped to drink a soda. Also in the episode, when Flaky landed the plane into the ocean, the inflatable evacuation slide was deployed, in which Flaky seemed to have forgotten that she's a porcupine which lead to her popping the slide as she hurriedly try to slide down from the airplane.
*Without a Hitch: She lets her hallucinations distract her from driving, causing her to crash into a pole. Also, when Flaky is attempting to loosen the lug nuts on the car's wheel, she is instead tightening them by trying to turn them clockwise (righty tighty, lefty loosey).
*A Bit of a Pickle: She neglects to drive around the tree blocking the road.
*The Chokes on You: She somehow does not notice that the "donut" she had gotten is made out of (Lumpy's) flesh. She then proceeds to swallow the donut without chewing.
*Royal Flush: She tries to force a pickle down the toilet with a plunger instead of taking it out when it was clearly too big to go down the pipes even if it was a normal pickle. She also eats it without chewing at all, apparently not having learned anything from the previous episode.
*Going Out With a Bang: For whatever reason, Flaky simply stands in the middle of the street with her eyes closed. She also makes no effort to move out of the way when the manhole cover gets launched in the air. (Debatable; the manhole was above her and there was no way for her to notice it)
==The Mole==
Some may consider The Mole's actions justified, since he is blind. However, there are times this rule would not apply. 
*Various episodes: He does many things that require sight, such as reading, driving, etc.
*Spare Me: He does not wonder what is blocking the holes in his "bowling ball", instead roughly jamming his fingers right through Sniffles' glasses.
*Don't Yank My Chain: He somehow mistakes the boat for the chain and saws it in half, even though the chain would not have required him to saw for that long of a distance.
*Party Animal: Throughout the second half of the episode, he can be seen wearing a blindfold despite already lacking eyesight. He is even seen "cheating" by covering only one of his eyes.
*Who's to Flame?: Fire hydrants do not simply flip open like the valve for a gas tank, so he should have questioned that.
*A Sight for Sore Eyes: He somehow mistakes the texture of a pear for that of a light bulb. He should have at least questioned the pear's rough texture.
*Wipe Out!: He shreds Lumpy to death and carves his body into a surfboard. While unable to see, he should have at least heard Lumpy's screams of pain, considering the earphones he has on do not even cover his ears.
*Autopsy Turvy (Double Whammy Part II): When he cut his foot on the broken glass on the floor, he questions it briefly but just moves on instead of picking up what he cut himself on. (Debatable)
==Disco Bear==
Disco Bear's intelligence is likely not very high. An early gag consisted of him accidentally killing girls and thinking their suffering was a type of dance move.
*Stayin' Alive: He tosses Giggles into scalding hot tea and Petunia into an electric fence, and obliviously dances to their movements of pain.
*Who's to Flame?: He drives off in a fire truck with Cuddles still up on the lift. He also activates the fire hose despite the fact that where he was looking, he should have seen that it was attached to the gas tank instead of a fire hydrant. He also does not turn the hose off, resulting in many more houses catching fire.
*Aw, Shucks!: He is completely oblivious to the fact that Giggles has been hit by a chunk of popcorn, and believes that the popcorn that hit her is an afro. He then proceeds to kiss her before being killed himself.
*Easy Comb, Easy Go: He sticks his head inside a cotton candy machine. He leaves the back of a van open, which causes bottles of hair growth formula to fall out. He sticks his entire head in the formula instead of just pouring it on top. Finally, he cuts off his eyes with a straight razor.
*Put Your Back Into It: After his spine bursts out of his body, he tries to fix it using duct tape, when it would make more sense to just go to a hospital.
*Ipso Fatso: He drinks water on a treadmill, what causes him to spill it on the treadmill's controls. Because of that the treadmill goes off and breaks through the glass walls of the gym, sending him out into the streets with glass shards flying in the air. The shards cut Russell and Nutty to pieces.
*A Change of Heart: After finishing his breakfast, he dips a stick of butter into a fryer and eats it, resulting in his heart attack.
==Russell==
Russell's intelligence does not seem to be that high. In fact, it could be comparable to Lumpy's at times. However, some of these may be justified due to Russell's vision problems (as seen in A Sight for Sore Eyes).
*Whose Line Is It Anyway?: He swallows a live puffer fish and it inflates in his throat. (To be fair, he was not looking.) Despite choking and having his arms removed, all he can think about is catching the fish that is caught on his lure.
*Snow Place to Go: He tries to ice fish throwing the line from a distance like regular fishing instead of dropping the line right down the hole.
*Mime to Five: He presumably hires Mime to work at the drive-thru even though the latter does not talk (though it is possible that he was unaware of him being mute).
*A Sight for Sore Eyes: He makes no attempt to run or close his eye, letting Lumpy touch it with a contaminated glove.
*In a Jam: He strums an electric guitar while a glass of water lays on top of an audio box. Knocking over the glass, he ends up being electrocuted to death.
*Something Fishy: He does not realize that Lumpy put the fish's bowl over his head until it is too late when he should have at the very least realized that his head was underwater.
*YouTube Copyright School: He does not care what kind of dangerous stunts to do while creating his video. (Debatable as he might have done it out of his original idea to gain viewers. But otherwise, he did not think about what kind of risks he might face from doing said stunts.)
*Bottled Up Inside: This is probably the most infamous example of Russell's stupidity. After getting impaled in the chest, he does not call an ambulance. He tries to enter his car with his back facing the wheel, leading to him pointlessly pushing the bottle deeper into his chest. He does not lean back or try adjusting his seat when the steering wheel gets stuck on the bottle. He continues to pointlessly drive forward, and he does not stop his car before passing the hospital, killing Cub and eventually getting himself killed.
*You're Kraken Me Up: He is completely oblivious to the fact that Giggles' head was torn off and placed on a giant squid's tentacle.
*Put Your Back Into It: He rips out Disco Bear's spine and head, thinks he has caught a fish, and cooks the remains for a dinner date. It also makes very little sense why he was casting his fishing rod at the beach instead of towards the ocean.
==Lifty==
Despite being considered by most as pretty much the same character, Lifty seems to have more of the brains of the raccoon duo. However, he still makes stupid mistakes. While Shifty has done a lot of stupid acts on his own, Lifty's stupid acts are mostly done along with Shifty rather than by himself.
*Wheelin' and Dealin': He does not notice until the race is about to start that their cart does not have wheels or that it does not have a steering wheel until one is needed, despite presumably having made the cart with Shifty.
*Meat Me for Lunch: He, along with Shifty, keeps a shoe in their fridge.
*And the Kitchen Sink: He, along with Shifty, notices Pop's car coming in their direction but makes no effort in moving out of the way.
*Don't Yank My Chain: He, along with Shifty, steals a car that was about to be filled up with gas and expects to get far with it. (Though, to be fair, the car does not run out of gas until the end of the episode.) They also stay in the car when it is on train tracks even when the boom gates go down.
*Doggone It: He tries to tug a dollar bill from Shifty's hand instead of letting him focus on driving.
*Sea What I Found: He hangs on to his dead brother instead of reaching for the surface (even when he proves incapable of carrying Shifty back with him), ultimately drowning as a result.
*Easy For You to Sleigh: He, along with Shifty, tries to rob Flippy, despite seeming to know about his mental problems by their uncharacteristic paranoia at first, and their instinct to tie him up. He also blindly trusts the directions out of the window without looking for himself. which, even if it actually was Shifty giving them, is a bad move.
*As You Wish: He drives their van forward from the rolling disco ball when he could have just driven into the grass.
*Junk in the Trunk: He holds a mouse in front of Lumpy's Elephant, even though elephants are afraid of mice.
*Buns of Steal: He rivets the plank down with bolts while standing on the plank, instead of doing it from the inside of The Mole's van. He does not make an attempt to leap into The Mole's van when the plank he was standing on breaks, or when his right foot starts to slide down.
==Shifty==
Shifty, unlike his brother, seems to have a very low intelligence level and causes more mistakes than Lifty.
*Wheelin' and Dealin': He builds a race car without wheels or a steering wheel. When Lifty asks him where the wheels are, he responds with "Huh?", seemingly not knowing that cars need wheels or having forgotten them.
*Meat Me for Lunch: He, along with Lifty, keeps a shoe in their fridge.
*Milkin' It: He jumps up and down in a hot air balloon, causing him to fall through it.
*And the Kitchen Sink: He, along with Lifty, notices Pop's car coming in his direction, but makes no effort in moving out of the way.
*Don't Yank My Chain: He, along with Lifty, steals a car that was about to be filled up with gas and expects to get far with it. (Though, to be fair, the car does not run out of gas until the end of the episode.) They also stay in the car when it is on train tracks even when the boom gates go down.
*Doggone It: He focuses on a tug of war with Lifty over a dollar bill instead of driving.
*Easy For You to Sleigh: He, along with Lifty, tries to rob Flippy, despite seeming to know about his mental problems by their uncharacteristic paranoia at first, and their instinct to tie him up. Also, he alone goes back to retrieve the bag of sand that was there to stop the bear trap from cutting his arm off.
*As You Wish: He throws a lamp into the back of his and Lifty's van and leaves the back doors wide open, causing the lamp to fall out of the van.
*Swelter Skelter: He tries to return the fire on his hands to the blowtorch, blowing it up.
*Buns of Steal: He rivets Lifty's foot to their van, presumably in an attempt to save him, when it would have been better for Lifty to leap into The Mole's van. Instead of staying in his van, he walks on Lifty's vein to kick Lifty's head off and reach The Mole’s van. He also does not go somewhere else to eat the bun.
==Mime==
Mime has caused quite a few of these, with at least one popular case. From the information provided on Mime, he may be unintelligent, but in the minority.
*Mime and Mime Again: He makes no effort to turn the fan off before Toothy gets sliced apart and dies.
*Easy For You to Sleigh: He somehow does not notice that Lifty and Shifty are watching him, despite the fact that they are not even hiding.
*Who's to Flame?: Assuming he can talk, he should do so on the phone instead of mimicking. If he cannot, he should not use the phone in the first place.
*As You Wish: He makes no effort to move his unicycle out of the way of the moving rocket ship. Instead, he keeps on riding directly in front of it. That leads to his hilarious death.
*Dunce Upon a Time: He stays in the broken jar even when he is about to be stepped on.
*A Hole Lotta Love: While Petunia is at fault for not paying attention, Mime could have easily moved his unicycle out of the way of her car. Riding his unicycle away from the falling chunk of Cuddles' house instead of riding sideways, he was fortunate enough that the window that fell on him was open.
*Mime to Five: He takes a job at a drive-thru window even though he can only mimic talking. His mime instincts once again get in the way when he mimics trying to save an imaginary person drowning, letting Sniffles drown.
*Aw, Shucks!: He, along with Nutty and Sniffles, makes no attempt to take cover despite seeing the giant corn shoot popcorn all over the place and stands perfectly still when a piece flies at him. (Debatable as it could've been moving too fast for him to react, and he was behind Nutty which was blocking his view)
*Wingin' It: He places the food cart in front of the bathroom door without knowing if someone was inside. He should also have been able to see or hear Petunia going in.
*Something Fishy: He does not even notice the fishbowl is on Russell's head instead of the helmet.
*Random Acts of Silence: He does not close his eyes when Fliqpy is going after him with a piece of paper.
*His Smoochie: He does not tie his shoelaces first right before jumping the hurdle, thus leading to the top of his head getting sliced.
==Cro-Marmot==
Due to his body being encased in ice, Cro-Marmot has made almost no actions, dumb or otherwise. It could be argued that he is intelligent, as he is capable of moving and surfing, among other talents, despite the fact that he is currently frozen.
*Snow What? That's What!: He throws a snowball at Giggles' corpse.
*Dino-Sore Days: He bites into the tail of a live dinosaur, thinking it was part of the carcass he was about to dine on.
*Chill Kringle: He is shown to be attracted to Petunia despite the fact that she is clearly dead.
*By the Seat of Your Pants: He enters a swimming competition despite the fact that he freezes water on contact. (Debatable as this might have been his plan, and he may have had control over the water, thus the reason why it spread so quickly in Wipe Out!.)
==Flippy/Fliqpy==
Similar to Handy, both sides of Flippy are less prone to make stupid mistakes, possibly because of his age and experience in the military. However, he does have a few idiotic moments.
*Remains to be Seen: Fliqpy accidentally kills himself in a truck crash.
*Party Animal: Flippy drinks Mime's liquefied remains, even though it is the color of blood and he used one of Mime's antlers to stir it. Also, despite the amount of carnage in the room, he does not even seem to notice (or care about) the gore around him.
*Hear Today, Gone Tomorrow: Fliqpy rings on Lumpy's doorbell and waits for him to answer, taking so long that he leaves. He could have just burst in through the door and killed Lumpy anyway. He does not make any attempt to move out of the way of the swinging log, which would have hit him even if it had hit Lumpy first.
*Double Whammy Part I: Flippy gives Handy a foam finger, not noticing his obvious disability (Debatable because he might just have taunted him about his disability). He also continues to work at the amusement park, despite previously flipping out there 2 times. Later on, he takes a lot of anxiety pills, which could have resulted in a lethal overdose.
*Autopsy Turvy: He attempts to cross a road with his eyes closed, resulting in his death.
*Operation: Tiger Bomb: Flippy mistakenly throws a pizza slice instead of a knife at the Tiger General, exposing himself. After inadvertently throwing a knife at Sneaky, Flippy nervously decides to pull the knife out of his stomach, rather than medically treat the wound.
*By The Seat Of Your Pants: Flippy goes out to watch the swimming race, despite hearing the gunshot on TV and thus knowing it was going to happen. (Debatable because he may not have remembered the gunshot, due to flipping when it happened)
==Splendid==
In a manner similar to Pop and Lumpy, Splendid frequently screws up his superhero duty, often making things much worse. This is due to putting his own needs first or simply out of dumb decisions. Because he usually makes stupid mistakes in almost every episode (something not even Pop or Lumpy could say), he may be the most unintelligent character in the show, possibly rivaling Lumpy. 
*Helping Helps: He flies into a branch, which causes Giggles to be decapitated.
*It's a Snap: He decapitates Lumpy with his laser vision.
*Better Off Bread: He catches a falling Giggles, but fractures her back in the process. Throughout the episode, Splendid never once thinks about actually putting Giggles down before doing anything else. He presumably kills a seal and two seagulls in an oil spill. He then flies into space to blow up an asteroid, still carrying Giggles and skinning her face. Later, when he places Giggles next to Toothy, he does not notice her skinned face.
*From Hero to Eternity: When he tries to save Cuddles through mouth-to-mouth resuscitation, he inflates him until the poor bunny pops, deafening Giggles. He whacks a snowball away with a tree, not checking to see if anyone was in the tree house. He does not remove Lumpy from the truck before using it to stop the other snowball. This plan ends in the town being flooded and several characters sinking to their deaths in a whirlpool. 
*Gems the Breaks: He blows kryptonut dust away and takes off his mask, resulting in it blowing back into his face. He also holds all of his vomit in his mouth, allowing it to build up until he explodes (To be fair there was really nothing else he could do, the vomit wasn't stopping, and it was making a big mess).
*See What Develops: He fails to save Handy and Mime simply because he had nowhere to change out of his disguise, and even after changing, Splendid has a hard time choosing whether to follow The Mole or save Handy when the latter would have been the obvious choice. He then mistakenly attacks Giggles, thinking she was The Mole. He flies off so fast that Giggles gets shredded and a nearby Toothy gets disintegrated. Finally, he freezes Cuddles with his ice breath and breaks him into pieces in an attempt to thaw him out.
*Wrath of Con: He sends a pencil tip through the heads of Russell, Disco Bear, and Mime. Later, he accidentally deafens, suffocates and kills a crowd of fans, also destroying the convention center. Finally, he gets Sniffles crushed by a chunk of debris, which he could have tossed aside before agreeing to give him an autograph.
*Breaking Wind: He does nothing to save the victims of the tornado and dooms the entire planet in favor of his book pages. The wise decision would have been to leave the book at home.
*Just Be Claus: He does not think about removing the ring from Petunia's hand before crushing it and breaks her fingers. Later, when he destroys the list, he accidentally uses his heat vision seconds after the list has been disintegrated and ends up slicing Cuddles in half.
==Lammy==
Despite her being relatively new to the show, Lammy has already proven herself capable of making many stupid mistakes.
*Every episode she stars, features, or appears in: She carries a serial killer (or who she believes is one) with her, even though every time he does something bad she gets blamed for the crimes. (Debatable because she may fear what he would do if left alone and feels it is her duty to be there to stop him.)
*Royal Flush: She fails to notice that a certain pickle crawled into one of the sandwiches she was about to serve when she should at least have seen his inanimate form. She tries to take the nozzle out of Petunia's eye and later reverses it instead of simply turning off or unplugging the vacuum (Which lead to Petunia inflating like a balloon and popping).
*You're Kraken Me Up: She does not see the tentacle controlling Giggles, and even starts cheering when Lumpy "saves" her.
*All Work and No Play: She, along with Nutty and Sniffles, decides to play on a playground that is clearly still under demolition.
==Other==
Even though the main characters are more developed and have more screen time to show acts of stupidity, recurring, minor, generic, and even one-time characters can have their acts of stupidity as well.
*Helping Helps: Giggles' Mom accepts an acorn with a crudely drawn face as her daughter's head and does not notice when it falls off.
*A Change of Heart: The Generic Tree Friend driving the truck through the tunnel does not stop when there is a large heart in the way and continues to drive until the truck crashes.
*Tongue in Cheek: The Ants let a drawing on Sniffles' finger inside, mistaking it for a real ant.
*Autopsy Turvy (Double Whammy Part II): An unseen Generic Tree Friend drives a chicken truck on the sidewalk and runs over Flippy in plain sight.
*Operation: Tiger Bomb: Tiger General, as well as his soldiers, do not question that someone wearing an enemy uniform is delivering a pizza to their base in the middle of a battlefield.
**A Tiger Soldier picks up what he thinks is an apple, but when he realizes it is a lit bomb he keeps holding onto it, despite having ample time to throw it away.
**When Fliqpy reveals himself, all of the Tiger Soldiers stand still and do not attempt to shoot Fliqpy with their guns, even when he kills one of them with Sneaky's skeleton.
*Mirror Mirror: Splendont drops a train full of passengers upside-down and tries to beat Splendid by pushing the Moon to Earth, killing many Generic Tree Friends, which was clearly not his intention.
*I Nub You: The Generic Tree Friends who gave Lumpy the remains of Handy and Petunia only gave him at least five pins of meat from the two characters each instead of bringing all of them.
*Almost every episode that has Fliqpy in it: most of the time when the characters witness a murder by Fliqpy they make no attempt to run or call for help.
Category:Happy Tree Friends Universe
Category:Lists
Category:Characters