Other mistake: In the opening credits, Ted Bonnicken's surname is misspelt as "Bonnickson."
Other mistake: When Daffy uses the elevator-like device to bring the second floor down to the first floor, there is a useless outside door on the second floor.
Other mistake: After Precious has her baby, Abdul, her school friends visit her in the hospital as her nurse, "John," is eating lunch with her. When John introduces himself to Precious' friends, he says he is a nurse's aide, and then later refers to himself as "Nurse John." When he stands up to leave the hospital room, you can see the word "NURSE" on his hospital ID badge pinned to his scrubs.
Other mistake: When Sylvester is looking in the mirror whilst trying on hats, one of the hats has a price tag on it which reads $105.95. However, you can see the price numbering is the right way round - it should be back to front.
Other mistake: After the fade out, the "The End" board shows it as an "MGM Tom and Jerry Cartoon." The two stars were not in this short at all.
Other mistake: During the train chase Wallace steps onto the train track that's going to the left on-screen, then he goes to the right as if the train is going the opposite direction on the track.
Other mistake: When Donald crashes his car, a tire comes loose and rolls toward Chip and Dale. As the tire falls over them, Dale disappears for a fraction of a second.
Other mistake: In the opening credits, Tom O'Loughlin's surname is spelt as "O'Laughlin."
Other mistake: Just one second after Bugs puts a letter (presumably an order for a pair of earmuffs) into a mailbox, a courier arrives with a package containing the earmuffs.
Other mistake: In the opening shot, while Horace and Clarabelle are skating in the foreground, you can also see them skating in the background.