Four freaks... I mean... Four engineering students were gathered together discussing the possible designers of the human body. One said, "It was a mechanical engineer, just look at all the joints." Another said, "No, it was an electrical engineer. The nervous system has many thousands of electrical connections." The third said, "It was obviously a chemical engineer, just think about all the reactions taking place each second in the body."

The last one said, "You're all wrong, it had to have been a civil engineer. Who else would run a toxic waste pipeline through a recreational area?"