When you charm a enemy with item skill and he uses elixir, he spending yours ????
I never think in this before because never hapened....
charm does it too or just guests?
if they are working for you tho, its likely
I'm pretty sure that Charm enemies doesn't make take from or add to your various inventories since in the 11 Archer battle I had at Zirekile Falls, towards the end of the battle, one of the Charmed female Archers started to steal from the other and I didn't get any of the loot after I won.
Similarly, during my win run against Balk I (IIRC), one of my generics got Charmed for a bit and used an Elixir on someone, which came out of my inventory and not the computer's.
So, yeah, only Guests use your Items; Charmed enemies don't.