Ya know, whenever I run into conflict w/ kids, it's usually got some damned thing to do w/ my kids. So I get intel from the kids, advise them and see how it goes. If it's getting out of hand, we'll take the kid(s) in question, talk to the parents and the other kids. We don't suggest what they should do about it, not our place. We just tell them how we see it and ask them what they know about it.
So far it's worked out. Only had a problem about three times, and each time a different one or two of the adults in residence would come talk it over, exchange thanks and go on their way. People tend more to act really decent if you start off expecting it.
Whoever fights monsters should see to it that in the process he does not become a monster. For when you look long into an abyss, the abyss also looks into you.
--Nietzsche