Continuity mistake: When Peter returns home from being hyped up on Red Bull, he has numerous cans in his arms. When he sees Stewie he immediately drops the cans on the floor but when the camera pulls back as he sits down with Stewie in his lap, the cans of Red Bull are nowhere to be seen.
Factual error: When Peter is on The Price is Right, Drew says he's the top winner of the day so he'll spin first. However, the top winner always spins last.
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