Three engineers are having lunch and discussing what kind of engineer God is. The mechanical engineer says, "God must be a mechanical engineer, look at the complex structures of the body!" The electrical engineer says, "No, look at the electrical processes of the body, which the brain could not operate without, he must be an electrical engineer." The civil engineer says, "You're both wrong, he had to be a civil engineer. Who else would run a waste line through a recreational area?"