A mechanical engineer, an electrical engineer and a civil engineer are talking about God. The mechanical engineer says God is a mechanical engineer because of the design of the body. "Look at how the blood flows and the heart pumps, without a flaw for upwards of 100 years! He has to be a mechanical engineer!"

"No," says the electrical engineer. "He is an electrical engineer because of the nervous system. All that activity is run by a system so intricate yet so precise that it runs the whole system with incredibly tiny amounts of power."

The civil engineer thinks for a minute and then says, "I know you'll agree that He is a civil engineer. Consider the groin. Who else would run a waste disposal system through a major recreational area?"