When Bart's birthday party turns into a disaster, he uses his AM radio gift to play pranks on the townspeople. Eventually he uses it to pretend to be a boy stuck in a well, and the whole town comes to his aid.
Everyone at the powerplant thinks Homer is crazy when he shows up in a pink shirt and want to give him a mental health exam. He has Bart take it for him and ends up in a looney bin with Michael Jackson.
(After Homer rejects other names for boys based on rhyming nicknames) Marge: What about Bart? Homer: Let's see. Bart, dart, cart, e-art. Nope can't see any problems with that. (Missing fart due to only 4 fingers)