[If Baymax notes Hiro growing more and more distressed the more Tadashi prods him, he doesn't say anything. Maybe because he's too busy letting out air as requested. He's trying to crack open the first aid kit to check the contents, trying to side-step out of Tadashi's reach, thinking: I did this for your own good, okay? Only there's no good way to explain that to Tadashi without upsetting him, probably.

In the process, he catches his own glimpse of his hands, and they look like a wreck - blood and dirt and who knows what else he picked up, running his hands all over the sewer walls. He lets out an irritated noise and turns to shoot Tadashi a look.]

A lot of things are happening! Weird things. Crazy, impossible things. More importantly - [And he jabs a finger insistently at the manhole, deep and dark and yawning open in the middle of the street -] Robert Callaghan's down there, and he's in pretty bad shape. I have to go back down there. You of all people don't get to tell me not to.

[You charged into a burning building for him, asshole. You set the bad example.]