I ain't hittin' it I'm knockin' sense into it. [He levels his very best 'I'm going to eat you right now' glare on Iwaizumi, watching him and his backpack closely, like he expects there to be weapons in it or something.] The fuck did you do? An' it ain't a whatever-bone it's a hollow. Can't you see it's mask? [He knocks a knuckle on the bone snout, and the poor little thing starts wailing. Again, apparently, if Grimmjow's heavy sigh is anything to go by.]