A mechanical engineer, an electrical engineer and a civil engineer were arguing over what type of engineer god was.
The mechanical engineer pointed to the body’s intricate skeletal / muscular system and proudly stated that god must have been a mechanical engineer.
The electrical engineer said that was OK but he felt that the brain and nervous system were of such incredible design and complexity that god had to be an electrical engineer.
The mechanical engineer and the electrical engineer both looked at the civil engineer who was smiling at their discussion. “I suppose you think god was a civil engineer” they said.
“Of course” replied the civil engineer. “Who else would run a sewer system through a major recreational area”?