A woman went to see the doctor. She told the doctor that when she touched her arm, her finger hurt; and when she touched her head, her finger hurt; and when she touched her knee, her finger hurt.

The doctor looked her straight in the eye and said, "You're a Natural Blonde, arent you?"

Why yes, she replied, but how did you know?

Just a wild guess, said the doctor, and I also know that you have a broken finger!