One of the indoor clubs I was a member at locally had a problem mentioned above - no on duty range officer. They tried to monitor behavior via CCTV, but there was so much unsafe behavior, I let my membership lapse and joined a new club across town that DOES have a range safety officer on duty full time. I feel much better knowing someone is keeping an eye on those who haven't learned the rules, and will remove those who don't think the rules apply to them.