Factual error: In the episode Catman Meets The Crimson Chin., When Timmy guesses the password to release Cosmo and Wanda he types CAT notice that where he hits the keys are not in the right position for typing CAT.
Factual error: When the characters in this cartoon are floating, the shadow circle on the ground is smaller when they are higher and bigger when they closer to the ground.
Answer: It's a joke. One cannot list all forms of entertainment. The list would never end. The boys were trying to convey how superior they were to the others, by saying that they were too good for comedy.