True.
A man walks into a doctor's office and asks the doctor to inspect his leg. The man says, "Here, put your ear to my knee."
The doctor puts his ear to the man's knee and hears very faintly, "Come on, can I have five bucks, just five bucks?"
The doctor steps back in horror, and the man says, "I know, but it gets worse. Put your ear to my shin." The doctor puts his ear to the man's shin and hears very faintly, "Come on, can I have ten bucks, just ten bucks?"
Once again, the doctor stands up, very perplexed. The man then says, "If that surprises you, put your ear to my ankle." The doctor puts his ear to the man's ankle and hears oh so faintly, "Come on, can I have twenty bucks, just twenty bucks?"
The doctor then stands up and says, "Well, I can I make just one conclusion. Your leg is broke in three places."