Another candidate comes from a friend who was an Oregon state police officer assigned to game detail.
He said they had to qualify with the 12 gauge with pistol grip. One of their fun training things was hip-shooting clay birds. Using low-base target loads, they got a little sloppy. Apparently he "forgot" and canted the shotgun a bit when he was firing a 3" load of buckshot and the square rear above the pistol grip came back and hammered him on the hip bone.
Anyone who thinks there's two sides to everything hasn't met a M�bius strip.
