One thing happened to me at my local range. On my left was a guy shooting a shotgun, when it didn't fire, he tried to tinker with it facing to his right which was myself. I moved back and stared at him, he saw me and he carried on doing his thing. After he got sorted and range went cold, i packed and left. Therr are days when everyone shooting are great, sometimes all the idiots decide to come at the same time.