One day, while walking through the Garden of Eden, Adam looked up to the Heavens and spoke to God. "Father, this place is great, but there is one thing missing," he said.
"What is that my son?" God asked.
"Wow, that's a tall order, though perhaps I have just such a creature in mind. But," said the Lord, "it's going to cost you big time."
"Oh yeah, how much?" said Adam
"An arm and a leg," replied God.
Adam thought this over for quite some time and then asked: "Well, what can I get for a rib?"