Crimes and Meg's Demeanor - S16-E8
Continuity mistake: Peter and Meg are in a Greek week. There is a stair close to the front door while we see Peter's drinking. In the next shot, when Peter and Meg are leaving, the stairs disappear.
Crimes and Meg's Demeanor - S16-E8
Continuity mistake: At the beginning of this episode Peter is talking to Meg about her senior year in high school. This makes no sense considering she turned 18 in season 10, which was released in 2012.
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