1. On Danny Boy's Halo 3 TDM, I killed Vampire Man Soldier (he changed his name, last I checked it was The Creeper Soldier) and he said "no freekilling, king of bill". After about five of this, Tomtom banned him with the message "Come back when you turn off the auto-responder". It wasn't an auto-responder, the guy was actually saying this every time.
2. On some server, I don't remember what, some guy point-blanked me in the back of the head with a shotgun and missed every shot. I whipped around and killed him.