Well, that explains it

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After God created Adam, and Adam had been in the Garden for a really long time, he started to get a little lonely. So, Adam went to God and said, "This Garden is amazing, but I'm starting to get a little lonely; is there anyone that you can send to keep me company?"
God answered, "I have the perfect person. She will help you with almost everything. She'll clean, cook, wash you clothes, be your friend, and even rub your feet after a long day. She really is perfect in every way!"
Adam said, "That sounds great! How soon can you send her?"
God replied again, "I can send her right away, but there is one thing ... it's going to cost you an arm and a leg to get her."
Adam thought for a moment, and then said, "What can I get for a rib?"

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