AWESOME
Back in the day the Gracies used to go from martial arts school to martial arts school, challenging folks to prove that their particular style of jiu-jitsu was better suited for a fight than whatever kind of karate of Tae Kwon Do was being taught there. But thanks to the UFC and the popularity of MMA, that's kind of a dangerous thing to do nowadays, as more people are training for "real" than ever before.
But hey, if you really want to strut into a school and throw down, don't let that fact stop you.
It didn't stop this guy.