Continuity mistake: The position of the sign Peter puts up changes from by the pavement to by the driveway. (00:07:30)
Continuity mistake: When Stewie startles the old lady in church, the guy to her left moves much closer and changes where he is looking between shots. (00:03:20)
Continuity mistake: At the start Bonnie says about Lois going to Tai Jitsu, Lois has her hand up by her mouth in one shot and in her lap in the next. (00:00:50)
Revealing mistake: When Peter says "kicking, Lois?", after being kicked into the stereo, his nose very briefly turns white. (00:20:00)
Continuity mistake: When Stewie is thrown from the swing and lands in another little girl's stroller, the inside is suddenly much larger after Stewie lands in it when the camera changes angles to how big it was when he was flying towards it. It suddenly has enough room for Stewie to be lying beside the girl with room to spare while she is still in the center, when it was barely big enough for her alone before he landed.
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