Continuity mistake: When the movie starts, and the dog brings the letters, their position on the table changes between shots.
Continuity mistake: After all the kids have been shrunk, the nail on the floor swaps from laying between two planks to just one.
Continuity mistake: After the apple explodes, the amount of fruit on Wayne's forehead increases when he sits on the couch and Quark licks him.
Answer: More along the lines of a serious health problem related to her "plumbing".
Greg Dwyer