Cool. To everyone's credit, I've seen blackmail, smear campaigns, substitution tricks, plain ol' lies... I've RPed concoctions that might produce entertaining revenge effects (with permission from players of course), and my char's met folks who do revenge services for a fee, discretion guaranteed. So if there are chars whose ic reaction is really gonna be bludgeoning/maging/slicing someone to death, I roll with it. Live and let die.
