Ultimately evil characters (as well as PVP, inter-party theft, etc) are entirely dependent on the players and DM involved. Some players can clearly keep IC and OOC actions separate and think it's fun that one of their companions might turn on them if sufficiently motivated, while others expect the team to be a team, regardless of PC personalities.
I would highly recommend a DM just starting out put a ban on PVP actions and evil characters. After he's been running a game for awhile he can decide if he (and his players) are ready for the possibility of treachery and villainy. I do agree with idea that a vote should be taken in this instance and there needs to be unanimous buy-in before such things are implemented.
I would highly recommend a DM just starting out put a ban on PVP actions and evil characters. After he's been running a game for awhile he can decide if he (and his players) are ready for the possibility of treachery and villainy. I do agree with idea that a vote should be taken in this instance and there needs to be unanimous buy-in before such things are implemented.