I think it was the only time I ever reported someone to Microsoft because he was such a nut job. It starts out like any Halo 4 team slayer match, but the bulk of my team quits as soon as the match starts, so it's just me and the nutter vs. a full side. Suddenly I'm betrayed but I think nothing of it but it a few more times. Then I realize he wants me to boot him from the match rather than him quitting. He didn't communicate it via headset or send a message he just kept killing me and I kept ignoring the boot player prompt. After the game ends I get an angry f-bomb filled voice message from Mr. Nutso saying I don't know how to play the game.