The Courtship of Stewie's Father - S4-E16
Continuity mistake: After "Herbert the Pervert" leaves the Griffins' house, the size of the couch in relation to Chris changes distinctly between shots.
The Courtship of Stewie's Father - S4-E16
Other mistake: When Mr. Hubert is singing about his fantasy life with Chris, he is reflected in a mirror but his arms do not have the same angle; the reflected one is much steeper.
The Courtship of Stewie's Father - S4-E16
Continuity mistake: When the baseball crashes through Herbert's window, the glass shards are in different places in different shots. (00:04:05)
The Courtship of Stewie's Father - S4-E16
Character mistake: Lois takes a basket of clothes downstairs to wash them. But she puts them in the dryer instead of the washer.
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