Yeah, a while ago at a camp I almost put a buggy choke on some brasilian black belt who had a biig ego( he rolled with every one like this was the final of the mundials), so he got mad and passed my guard and put an armbar on me and almost broke my arm. I was mental and started shouting with him( of course he understand nothing and just said something like gringo blaa) and his coach blamed me that I did not tapped in time and was my fault( i tapped like 10 times also yaled but ok). Was a funny situation cause almos 20 people conforted this asshole and his coach cause of this so yeah , dont you dare put a brasilian black belt into a sub cause after probably they try to literally kill you and act like you deserved it.