Corrected entry: Homer's dumbness is caused by the crayon stuck up his nose, as stated in the episode, but on a previous episode, Homer remembers he once was injected with a new drug which the government was testing, which left him bald, fat and stupid.
Piemanmoo
9th Sep 2003
The Simpsons (1989)
9th Sep 2003
The Simpsons (1989)
Corrected entry: Marge seems to have remembered her Fear of Flying rather suddenly - only a few episodes ago she was flying to Itchy & Scratchyland in a helicopter.
Correction: She's only afraid of flying in planes.
Correction: He also hit his head on a coffee table as a child and was brain damaged. There's a lot of reasons.
Piemanmoo