Larry,
I sold a "work" car years ago that I had repaired the driver's outside mirror. Two years and a couple of owners later I got a phone call asking if I was an aircraft mechanic. He told me that the repair seemed to be done with aircraft rivets and to aircraft standards.
The extra credit for winning the event pushed the class grade and total GPA over the top for Arizona's state scholarship program, and may have paid for a better part of my -10.