and again, if no uncertainty exsists (the kobold or commoner trying to intimadate the 15th level barbarian, or the 1st level wizard trying to intimadate elminster) no roll needed... we use the rolls when we have someone that MIGHT be able to intimadate someone else...I don’t even think NPCs are meant to use social skills differently than PCs do. My position is that ability checks are meant to be used, both by PCs and NPCs, when the outcome of the action the character takes is uncertain, and not used otherwise. Since I believe that the outcome of an NPC trying to socially influence a PC is uncertain, so not calling for an ability check in that situation is using it the same way PCs do.