All these sperm are hanging around. Stanley the sperm is working out, swimming laps and lifting weights. Everyone else is just lounging around. The other sperm says, " Stanley, what are you working out for?" Stanley says, " When the time comes, I want to be the one.

" The other sperm says, "What are the chances of that--one in a million?" The time comes, and they all start swimming and Stanley is way ahead of the pack.

Then all of a sudden Stanley stops and starts swimming backward and tells everyone to turn around and go back. Everybody says, "Stanley, what's the matter?" Stanley says, "It's a b**w ***"