Three freshman engineering students were sitting
around one day arguing about who might've designed
the human body.

The first one said, "It must've been a mechanical
engineer. The human body has all those levers and
pivots and stuff - a mechanical engineer must have
designed all that."

The second one said, "No, it had to have been an
electrical engineer. The complex way the nerves are
wired up to the brain must have been designed by an
electrical engineer."

Then the third one said, "No, it was a civil
engineer. Who else would have run a waste water
line through a recreational area?"