I found out when we went to qualify why...
Our instructor had us stand shoulder-to-shoulder with about 3 inches of clearance. I was shooting my PA-63, which like pretty much all Makarov-chambered pistols has very positive ejection. My cases usually end up at 4:30 about 15-20 feet away.
Well, the fellow next to me failed to bring a hat as instructed and was taking my brass directly to his forehead. All places were taken, so he couldn't move... our instructor wasn't going to stop the test anyway. By the time we were finished, he had at least half a dozen crescent-shaped cuts to his forehead along with a bunch of tiny bruises. I believe he will remember his hat when renewal time comes around.
