Three guys get to heaven,Bob, Larry and Bill, and before they enter St. Peter warns them "whatever you do don't ever, ever, step on a duck. Once one quacks, they all do, and they make a terrible racket". Bob enters heaven and immediately steps on a duck. So an angel comes up to him and chains a large hairy ugly woman to him for eternity, and says " I told you not to step on a duck". The next week Larry steps on a duck. An angel comes to him and chains a very ugly woman to him for eternity and says "I told you not to step on a duck". Bill hadn't stepped on a duck since he had gotten into heaven, then one day an angel comes up to him and chains a beutiful supermodel to him. He asked her why she was there and she turned to him and said, " I don't know what you did, but I stepped on a duck."