I've played with some real RBDMs in the past and I wish they were still running games now - because their games were fun, exciting and clever.This. I've seen more failed attempts at true ratbastardry over the years (and this includes me looking in the mirror) than actual RBDM moments, and I think that one of the big traps is the idea that you want players returning to the table despite your ratbastardry... No, you want them returning because of it...
Two of them have also played in my games and qualified as RBPCs - much to the enjoyment of all.