That would be something.
Sadly, I had my DS' M14 in my hands on PPW a couple of years ago. It was thoroughly fubarred. They plugged the barrel AND cut the receiver where it doesn't show. The trigger group was good, however.
Interesting. The first thing my DS asked for during PS was to send him a care package of specific gun cleaning items. He took his M14 apart, cleaned all the rust off, reblued, polished, and relubricated it. After he restored his rifle he taught a few others how to do it. He was genuinely surprised that no one there (especially the upperclassmen) knew how to disassemble and reassemble one.
One of my DS was not a sit at a desk and study for hours type of personality. He is full of energy, loves life fully, and needs occasional outlets. Back when he was a youngster we used to drill him on spelling words and make him do push ups if he missed the word to engage in this part of his personality needs. He would miss on purpose to "suffer" the punishment and then spell it properly as he did them. He loved it. It fed his need for an outlet and helped him memorize better. Not sure if I was stricter than civilian parents in this example or just creative enough to find a way to help him.
Postscript: that DS is now a USMC Captain.
The cool-off time is important for both kid and parent. More for the parent, I reckon.