Griefing is unavoidable. If you get griefed, don't rage. Just calm down and learn how to death with aggressive players.
Griefing denotes a 'personal attack' on the player, and often means the perp will use the game in ways its not intended.
I don't see how anyone, but the very insecure, could claim this was personal -the aggressor didn't even respond to chat. This is just a computer game. This was just a random attack, exactly as FD designed.