Yep, so I have heard. There are also reports of organised group fights between hooligan factions. The nexus between soccer hooligans and extremist groups/organised crime is pretty well-known but it would be interesting to look at these groups' involvement in martial arts. It's never fun down there, right? Unless you're a BJJ guy and you're isolated from the opponent's buddies, then it's a cakewalk. That's interesting, how do you run your school? Do you have some kind of disciplinary policy?