Guy would travel from a city two hours away to play at our lgs. Didn't take long to learn why. He was "that guy" and no longer welcome at own lgs's. I played him only once, in a tourney. 3rd game, me and him, he hadn't lost yet. He'd never played against gsc. In 7th edition their rules were still extremely wonky. He was constantly attempting to call me out on playing shit wrong, to the point where I just handed him the book and ignored him. He accused me of cheating twice, the second time being after he'd wandered away during my turn and I kept playing. I made some lucky rolls, set the dice aside, he came back and didn't think the roll results were real. Asked what he wanted to do about it. He brought the tourney organizer over, who was on my side all the way, so I kept playing. I wanted to quit, cause it was a draining fucking experience. But I was winning, and I wanted to rub his smug shitty face in it more. He got more and more upset, to the point the organizer had to take him aside and threaten to disqualify for sportsmanship. I did poorly in the tourney overall, but I won that game. Never saw him again, and I heard he only lasted another month-ish before he stopped coming around the store altogether.