In the 30's, there was a scientific study of the relationship of intelligence to the ability to be taught to fly a plane. A high grade moron, IQ in the 80's, was found to be most suitable, least distractable, most able to follow checklists. The armed forces and the airlines apparently took this study to heart, and put the really smart people in maintenance. The moral of the story? Any idiot can fly the plane. It takes a smart guy to fix what they screw up....

Not responsible for advice not taken...