The Animal No One Wants to Be
When the Heartless Woman catches David in his lie, she tells him as punishment, the hotel will transform him into the animal no one want to be. Any ideas which animal that is?
Personally, I can't imagine anyone would want to be a cockroach, and assume it to be a universally despised creature. However, I don't know if the technology in the movie's universe could have done human-to-insect transformations, as it seems most of the transformations described were human-to-four-legged-mammal.
Maybe a rat? They're pretty awful, too.