Leaving flying aircraft is not near as bad as what you gottah do on the ground, what you went there for.....Why would you jump out of a perfectly good aircraft?!
Reminds me of our "Drill Sargeant" in USN Boot Camp (in the Navy we called them Company Commanders).
He thought submariners just weren't right. They couldn't be:
Because why would anybody sink a perfectly good floating vessel, a ship, on purpose?!