IMO tournaments that are "invitational" should start enforcing that. Stop inviting those teams that are problems. The kids in that club are embarrassed or starting to act like their coaches. If there is a constant problem with a team and/or coaches at what point does someone hold them accountable for their actions? There are times when everyone get emotionally wrapped up in a match but when coaches flip off spectators and not shake kids hands they should be banned. I witnessed this incident, but not surprised. When you have over 10 teams boo-ing a coach 3 weeks in a row because of their conduct and have to get extra security than someone needs to step up before there is a brawl. There are many good quality clubs that those kids can go to!