As a side not, I admit, I enjoy the RP-ish thought of someone talking off the circlet and just feeling themselves getting stupider, and it being a damn unpleasant feeling. Then having them bitch about it afterwards. Especially if they're an int 8 character.

Lover of non-haughty elves and non-smutty lesbian romance
"1404. I will not spoil the adventure's mandatory ambush by using the cheesy tactic of a "scout"." - From "Things Mr. Welch is no longer allowed to do in a (tabletop) RPG"