If Tony is at all bothered or even feels guilty about making the guy snap, he doesn't show it at all. He doesn't often get to be the one that gawks and he's enjoying the change of pace even if the other man is clearly uncomfortable with it.

"If you say so."

He hands the kit over and then makes no move to leave. Tony wants to see how he's going to manage with the crab hand. Chances are even if he was asked to go he wouldn't.