Another fine engineer joke

Three engineers are arguing about the nature of God.

The first says, “God is a mechanical engineer. Look at how we manipulate our arms, legs, lungs, and how blood flows through our bodies. God is a mechanical engineer.”

The second says, “No. God is an electrical engineer. Our nervous system, heart, brain. Everything is run by electrical impulses. God is an electrical engineer.”

The third says, “You’re both wrong. God is a civil engineer. Who else would route the sewage system through the recreation area?”