A severely obese man, upon the advise of his physician, goes into a quick weight loss center."First time?" asks the receptionist. "We'll start you out on the 10 pound program." She takes him into a room and departs, locking the door behind her. In the middle of the room is a nude woman with a sign on her: "IF YOU CATCH ME YOU CAN FUCK ME" He chases the attractive woman around the room for an hour or so until catching her and doesn't come out for another hour or so. When he finally gets home and weighs himself, he's lost twelve pounds. Needless to say, he loves this place. He returns the next day with his fifty bucks handy. "I'll try the 20 pound program today." She takes him to another room and locks him in just as before. In the middle of the room is a 400 pound gorilla with a sign on him: "IF I CATCH YOU I GET TO FUCK YOU."