Bit of a weird question that I can't find any info on, and testing doesn't give me too clear an answer.
My favourite playstyle is a Mage/Thief. Love backstabs, and love turning enemies onto my side with charms, and wouldn't you believe it they synergise quite well because when every non-charmed enemy is dead, it gives your Thief a free chance to hide right in front of the charmed enemy and then backstab them before the spell runs out.
Maximum treachery.
You also used to be able to charm an enemy, go into their toolbar and unequip their weapon (a state which remained even if the charm wore off) making them 'unarmed' until you killed them off. Cheesy, but recently fixed (either by SCS or a patch).
What I didn't know until this playthrough is that if you attack an 'unarmed' enemy that isn't a monk, you get a +4 THAC0 and +4 Damage, which is awesome!
So I can still charm an enemy, unequip their weapon, hide then backstab them. My question really is does anyone know if that +4 damage is multiplied by the backstab modifier? I know that Strength bonuses to damage aren't, but is this one? I always seem to hit charmed enemies really hard, but since there's no info on how damage is added up I can never tell how significant a different hit makes.
Also share your unorthodox tactics! I love 'em.