Peter, Peter, Caviar Eater - S2-E1
Stewie: I say, mother, this hotdog has been on my plate for a full minute and it hasn't yet cut itself.
Lois: Honey, I'll be right there.
Stewie: Oh, by all means, take your time. Oh and when you do finally get around to it, I'll be the one covered in flies a belly that protrudes halfway to bloody Boston! (00:00:31)
Answer: Mort is Jewish, and Walt Disney was said to be antisemitic. So it would make sense in a Disney universe all the inhabitants would share his supposed beliefs.
MasterOfAll