Back in high school my friend and I would go to his place a few houses away each thursday at 12.00 or so instead of arfternoon sport, Halo 3 would ensue. At the time I was at the top of my game and could blast through the ranking system to the mid 40's with a new account (which id done a few times for the free 1 month of xbox live gold).
My friend at the time was new to FPS's and was around level 17, the players I'd get paired against under his name really didnt know what was coming. Even on my own account i was used to being accused of hacking a few times each week, but on my friends acount people would go beserk. I won a few games in team doubles against the same team one afternoon, for each game my team mate would quit at the start and the other team wouldnt stop raging over each defeat.
Eventually they sent a voice message which went something like, "IM SICK OF YOU, YOUR HACKING AND IVE REPORTED YOU TO MICROSOFT, THERES NOTHING YOU CAN SAY AGAINST IT I KNOW YOUR HACKING, I SHOTGUNNED YOU RIGHT IN THE LEG AND YOU DIDNT DIE AND NOW YOUR GOING TO GET BANNED"