Kinda saw this touched on in another thread, but how far does the PVP rule go? Killing another PC is obviously forbidden, but can a player use intimidate or diplomacy on another player? If a character is doing something to screw over the rest of the party, is it legal to grapple them or cast Sanctity or Create Pit or something along those lines? I guess more plainly, if someone is breaking the "don't be a jerk" rule in a scenario, is there a way that a player can intervene and take a little heat off the GM?