Episode 503: Observe, Record, Annoy

== Plot ==
At night, Gordon welcomes the viewer while delivering some trash to Oscar the Grouch. He finds him at his trash can on his laptop, about to take an online course in Grouchology from P.U. (Putrid University). On the video feed, some Pesties introduce star teacher Nikola Messla and they sing their school song. Professor Messla gives Oscar's his first Grouchology question to answer - what do worms like to squirm on best? To find the answer, he must set up a Grouch experiment while obeying three rules - he must observe the worms, record his findings and, most importantly, annoy someone in the process. Oscar is ready to start some science and goes off to experiment.
At Hooper's Store, Alan is closing up shop, when Oscar appears to conduct his experiment. He covers the clean counter with coffee grounds and olive oil and Alan begrudgingly lets Oscar proceed ("Future Grouch generations will thank you, Alan!"). Some worms appear and start to squirm in the oil, while one worm goes with the coffee grounds. Oscar records this on his Grouch notepad and abandons Alan with the worms and the mess.
Oscar reports his findings to Professor Messla and concludes worms like to squirm in olive oil the best. Professor Messla is impressed and provides him with his next investigation - what stinky smell will make people scram?
Oscar watches from a distance as Leela and Gina play checkers. He wafts the stench of an onion and old cheese their way, but they remain put. He breaks out his secret weapon - his stinky socks, which drives them away.
Oscar reports back to Messla again, who provides him with his final question, and the most important - what sound is loud enough to wake up Maria and Luis? Oscar jumps at the idea and dashes off again.
Oscar appears in their bedroom and starts rattling cans. The noise wakes up a confused Maria, but not Luis. Oscar starts a "Grouch vuvuzela solo," which once again only wakes Maria and makes her angry. She yells at him so loudly, Luis is woken up. Oscar records this on his notepad and leaves. Luis doesn't understand what's happening and Maria tells him she'll explain in the morning.
Oscar's final experiment is a success and he receives his B.O. degree in Grouchology. After they sing him a graduation song (to the tune of "Pomp and Circumstance"), they have a loud, annoying celebration.
Category:2005 episodes