I have serious anger issues, especially when it comes to games and any sort of competition with friends. If they do anything which I consider unfair, or if someone is lagging in a game and kicking my ass because of it, I flip. Or if a friends playing on my 360 and starts dying or tking for the fun of it and ruining my score/rec.
I honestly do LOVE it though when i'm in a "Don't care, just a game" mood and actually believe that, unlike sometimes when I try to convince myself to stop getting angry, which always fails.
But posting angry? Naw, just usually vent in ingame chat