Naah man, I would tell them to come to our gym and take a round or two with me. You should invite them to your gym too, less problems and they will 99,9% of the times chicken out. I've atleast never heard of anyone accepting an offer like that, lol. And pre-agreed fights I wouldn't do, I don't know how old you are... but atleast I don't really care if someone calls me names you know, I think about it more the way that I don't want to stoop to their level. If some punk tries to fight me I would just duck his attempts to hurt me, if necessary just go for a takedown and control them or choke them. I don't think joint locks will do much as they will get pissed off and once they get back up they will start fighting again. So control them to show who's boss, if they won't calm down choke them out. If there are more of his friends you problably don't want to start wrestling though

Once they are out just leave the scene, they will wake up pretty fast I won't know what hit them.
Yeah, 5 vs 1 is too much. I got mugged by this gang once when I was 16 and cocky (haha, i thought I was bad ass cause I could benchpress like 230lbs or something... like that has any relevance to anything (I was big too, like 215lbs or something)). Did I get my ass handed to me.. but I learned a lesson back them: Humility. That's a very good think to posses
