As you may remember, Paul McCartney has written a children's book. Here's an amusing little bit from an article about it at Yahoo!:
In the first six pages of McCartney's book, about an industrious squirrel named Wirral (named after McCartney's hometown), Wirral's mother is crushed to death by a tree knocked down by nature-hating developers. From there, he sets off for the mythic animal-loving land of Animalia.
"Why did the author make such sad stories for children?" asked one perplexed little boy. Caught off-guard, McCartney wrapped his arm around the boy and joked, "To make children cry."
I like that answer.