Well... First, it would take a real ******* to come into a kwoon and start putting down anyones training. My guess would be that if it DID happen, the guy is obviously looking for a fight. MY suggestion is not to give it to him. If he insists on fighting and squares off, no less than 3 students should pound his arrogant ass into the off-colored multi-use indoor/outdoor carpet and call the cops.
But then again I could be wrong...
"Are you thinking what I'm thinking Pinkey?"
"I think so Brain, but me and Pippy Longstockings, I mean, what would the children look like?"