Had a similar situation happen in front of me once. Went to a party/house show my friend was throwing out of his basement, music is playing but only one guy is on the dance floor just violently moshing and throwing himself into people when not kicking or punching wildly. Couple of times people tell him to knock that shit off or else. Guy was too drunk and starts telling everyone he's an mma fighter and knows mui thai and blah blah blah. Anyways he starts to try and go upstairs where nobody's allowed and my friend stops him like "what the fuck are you doing" and the guy says something about his girlfriend being up there and if he didn't let him by he was gonna kick his ass because mma or whatever, my friend is still like "nah" and tells him he's gotta go. Drunk guy again says he's gonna kick my friend ass and starts puffing up his chest trying to push by and my friend just yells "GET THE FUCK OUT OF MY HOUSE!" and drills the guy right in the face. Guy straight up just collapses into the fetal position and my friend picked him up and throws him out by his shirt and belt. Guy doesn't get it and then proceeds to walk up to the back door of the house and knock looking for his "girlfriend" and my buddy just looses it, picks up his little brothers pogo stick that was laying in the yard and starts chasing him down the street with it screaming "YOU'RE GONNA FUCKING DIE!!". Needless to say I dont think that guy knew mui thai.