These jokesters are the curse of the shooting community! There was a young "cherry-butter-bar" (2nd. lieutenant, newly arrived in-country) who was made OIC of a perimeter sector at the base camp of the 2d Brigade of the 101st in Vietnam. He thought it would be clever to sneak up on random bunkers to catch troopers asleep on duty so he could write them up. On his second night of this duty he crept up the side of a bunker manned at that time by a buck sergeant back at the camp to prepare for DEROS (Date Estimated Return from Over-Seas). This guy was ending his second tour in 'Nam, had been through Tet of '68 at Bien Hoa, spent months on patrol in I-Corps (usually in the Au Shau valley), and had spent some time as a LRRP (Long-Range Recon Patrol). Now he was a week from heading down-country and out-processing to go back to the world where apparently his long-time girlfriend had accepted his marriage proposal. As any short-timer will tell you, those last days are very nerve-wracking because you want nothing to get in the way of going home. This troop was in no mood for some idiot officer to be playing "got'cha!" in the dark! When the lieutenant crept over the edge of the bunker he was met with a face-full of 5.56 on rock n'roll from six-feet away! He took most a full magazine (18 rounds then) before falling off the bunker. He was shipped off in a rubber body-bag the next day and the sergeant was held over from going home to his wedding while the Army performed a full inquest into the shooting. After a week he was cleared and sent on his way to try to have a happy life while knowing that he had taken the life of an innocent (though ignorant) member of his own service.
The eternal moral of this and all the other stories? GRAB-ASS AND GUNS DO NOT MIX!!!