This is also why I have become EXTREMELY selective with the ranges that I choose to patronize.
I was going to be bringing a few newbies shooting today (and fear not, I am over my new shooters like a hawk and take every one of their safety violations to be one of my own) but I learned that the range I wanted to attend was closed for a steel plate shoot. There are easily a half-dozen other ranges within the same driving distance but I had zero confidence in their ability to provide a safe environment, so I rainchecked. It is already nerve wracking enough for me to take newbies out to the range, I don't want to have to watch both their behavior and the other dumbasses as well.