I just read about the World Of Warcraft disease attack that is used by a character in the game that actually ends up being contagious to other players if you interact with someone that has been hit by the attack. Sounds like a sort of a plague is happening where a lot of low level players just keel over and die because the dood you fight is suppose to be for high level characters only. Thats pretty cool in my mind, sure I'd hate to be playing and get killed by the virus but its definently a cool idea that can only work in MMORPGs, gold.