Kinda... let me start with the oldest I know. A friend of mine was an Army CO in the Korean War, let's forget about names, who had just finished morning inspection. He had a fellow CO who was a dick, the type that not only made you do push ups in the mud, but would sit on you and beat the shit out of you while you do it. Total dick. Let's call him Dick. Dick came over and asked for a favor. He was running a bit behind and needed an extra hand with his unit's inspection, so he asked my friend to give him a hand. He figured, 'why not?' So they go next door to do the inspection and my friend took the right and Dick took the left. The right side had a storage area in the bunker, causing him to get to the first guy after Dick, thus putting him a few seconds behind. I don't know if you guys know, but during the Korean War, the M1 Garand was commonly used, and Garand Thumb is caused by accidentally snapping the bolt closed on your finger, which is easy to do if it's not locked back or you don't hold it. Just touching the follower or bolt can cause it to snap. So my friend gets up to his first man and he immediately notices that the bolts are put back and that the soldier was sweating profusely. Normally they have the bolts closed, but he figured maybe it was Dick's preference, and he had no idea why the guy was so nervous. What you do is, with the bolt back, you put your thumb in the chamber and look down the barrel, reflecting light off your nail to inspect the barrel cleanliness. Being wary of the bolt pulled back, my friend looks at the follower and notices the bolt is just barely hanging on the edge of it. It's then that he hears a snap and a scream, turning to see Dick stuck his thumb in and when he taps the follower, BOOM... Garand Thumb. To make it worse, Dick tried to yank his thumb out and took the nail clean off. Looking back, my friend tapped the butt of the gun on the ground and heard the bolt snap. It was right then that every other soldier reached around their shouldered weapon and locked the bolts back. He didn't say anything to Dick, cause Dick thought it was his own fault and Dick was a Dick.