Strippers.......

Why do strippers have bad knees? I mean besides the obvious jokes. I have noticed that strippers, ring girls and girls that take off clothes for money have scars and scrapes on their knees. Don't believe me? Check it out next time you visit your local adult club. Is there some funky dance that requires you to be spinning on your knees , causing cuts? If anything they should worry about burns on the inside of their legs. You could cause quite a chaffing going down a pole upside down.