[Duo pauses for a moment.] Damn, shoulda paid more attention to those. Well, I know crashin' your face into it doesn't work. Ya can't blow the thing up. Therma energy won't cut through it and that'll cut through just 'bout anything else, no trouble. It's been shot at, stabbed, hit with magic, shaken, blasted, burned, ummm... probably some magic stuff I can't name... Think that's it as far as I know.