Tony was rolling his eyes by Tai Chi (how did moving slowly reduce your stress, that caused stress, he could literally feel numbness in his extremities from the agony of watching Bruce not pick something to put into his face), but quickly snapped out of it by the shockingly offensive reminder that he was not Steve nor Thor. Sitting up straighter now, as though Bruce had just been momentarily mislead about the broadness of his shoulders, he insisted, "Are you kidding me? You could crush either one of them. You flex, and they pee a little. Besides, I'm not really aiming to live past sixty. I run out of things to offer once these looks start to go; I know you can't tell right now, but this hairline is disguising how annoying I am. Huh?" He even demonstrated, covering his forehead with one flat hand with his eyebrows raised pointedly, then dropping it and flashing a winning smile.