My regular outdoors range here in Austin.
They have roving range officers that move around between all three sections, but for the most part we police each other. Anyone can call a ceasefire and we all check with the entire line before we go hot (never been an issue in the past) Not sure wtf this guy was thinking...he should have asked, and he should have definitely seen me
About the brake thing, I hate to complain about other people's guns (it is a range after all), but we have a dedicated rifle section which provides ample spacing between shooters. He should have gone there