I've never experienced anyone quite this bad, but I did send one of my roommate's friends last year into a controller-throwing pissy fit after one too many sticky-nade-kamikazes in halo 2. In all honesty, it's understandable that that would get annoying, but he was one of these leet-ass tourney players who, in my mind, should be able counter my nooby tactics. He threw my roommate's controller on the ground, got all huffy and walked out of our suite. He is now known as "The Whiner" to my roommate and me. I don't even remember his real name anymore.
