The oldest profession

A physician, an engineer and a lawyer were arguing about whose profession was the oldest.

The surgeon announced, "Remember how God removed a rib from Adam to create Eve? Obviously, medicine is the oldest profession."

The engineer replied, "But before that, God created the heavens and the earth from chaos, in less than a week. You have to admit that was a remarkable feat of engineering, and that makes engineering an older profession than medicine."

The lawyer smirked, and said, "Who do you think created the chaos?"