There is this email that has been circulating. It lists 25 funniest analogies/metaphors collected from (supposedly) actual high school essays. (Many commenters of this blog believed they were actually purposely crafted by established writers, and not simple misuse of English language by high school students.)
Well, I have one bad paragraph of my own:
Seth had a prophetic dream the other night. In it, the air was filled with a golden hue, and a monkey was eating a banana. And when he woke up, there it was in the morning sun, a banana being eaten by his younger brother who was scratching himself like a monkey.