[Bozos of Bones]

Biggest shock for me is when my friend said he won a game against his DM. His whole perspctive on DnD was that he was supposed to kill the DM's avatar and the DM is supposed to kill the player's avatar. Roleplaying? He was killing NPCs left and right for fear of backstab or pickpocket! And the DM isn't even a bad one!
Anyway, the name says it all. "Just think, all these useful tips and suggestions in the hands of the guy who runs the monsters! Shudder." this book scares me.