To be fair to all the competitors, sometimes you have to take that position.
A couple years ago, as a co-MD for a big NRL match, I thought we were squared away with well seasoned and experienced shooters as ROs, we even took them individually and briefed them at the stage location they were responsible for. One stage in particular, we had an area marked, actually staked with 2x4s in a square that required the shooter to stay within with all their equipment while engaging the targets. The shooter could use any equipment they could carry into the marked area, and utilize as they saw fit. As I was making my rounds, after about three squads had already passed through that particular stage, I find out that the RO is allowing shooters to set up their equipment in that marked area prior to the start of the clock. That was not the intention of how the stage was designed, it was clearly briefed to the RO that shooters had to set up and/or adjust their equipment on the clock. Unfortunately, because several squads were allowed to set up their equipment prior to the start of the clock, we had to allow it for the remainder of the match.
The only other option was to not score that stage, which can cause drama in itself.