Quote Originally Posted by kamikasei View Post
But note that you can replace those helms with, say, a headband of intellect and take no AC or other penalty for doing so.
Player: "I remove my helmet, and place upon my head the Headband of Intellect."

DM: "Your mind swirls with newfound intellect, and suddenly you become aware at how un-intelligent it is to remove your helmet."

Player: "oh... right."