The Original Sin
After Adam was created, there he was, all alone, in the Garden of Eden. Of course it wasn't good for him to be all by himself, so the Lord paid him a visit.
"Adam," He said, "I have a plan to make you much, much happier. I'm going to give you a companion, a helpmate for you – someone who will fulfill your every need and desire. Someone who will be faithful and loving and obedient. Someone who will make you feel wonderful every day of your life."
Adam was stunned. "That sounds incredible!"
"It is," replied the Lord, "but it doesn't come for free. It's going to cost you an arm and a leg."
"That's a pretty high price to pay," said Adam. "What can I get for a rib?"