Q: How did the blonde* break her leg while raking leaves?
A: She fell out of a tree.

* This joke should not imply that blondes are less intelligent than people with other hair colors. It may, however, imply that people with blonde hair are not always required to act intelligently, that many willfully choose to exercise this peculiar social liberty afforded to them, and that some do so in very peculiar and humorous ways that can be to their own detriment.