A man was driving past a nursing home one day and saw six elderly ladies lying naked on blankets on the front lawn. Visibly shaken, he thought was just a momentary thing and went about his business. On the return trip past the home, he saw the same six ladies, in the same state of undress, on the front lawn. He phone the nursing home administrator and asked her what was going on. "Oh, those are retired prostitutes," replied the administrator. "They're having a yard sale."