They always catch the second person. Never ask your 3-year old brother to hold a tomato. You can't trust dogs to watch your food. Reading what people write on desks can teach you a lot. Don't sneeze when someone is cutting your hair.
Puppies still have bad breath even after eating a tic tac.
Never hold a dustbuster and a cat at the same time. School lunches stick to the wall. You can't hide a piece of broccoli in a glass of milk.