And then there are the guys who are wearing ear protection and are talking VERY loudly to their buddy at the adjacent bench, disrupting the other shooters. Or those spotting for their buddy and insists on yelling out, "IMPACT!!!". BTW, I hate the term "impact" Why can't spotters just say, "hit"? And while you're at it, do it quietly.
The shooters who won't pick up their brass. Steel case shooters are the worst.
Shooters who think that it's OK to set-up their equipment during a range break and others are downrange. Also those who think that it's OK to handle anything else on their bench except their firearm during a range break.
Shooters who don't leave their firearm in a safe condition for a range break (unloaded, action open and pointed downrange).
Range attendees who, after consuming a drink with sugar in it, puts the empty(?) can in the trash can. And others wonder why there are so many bees swarming the trash can. Leave the sugar drinks at home.
So there.