[Tony clearly looks bothered by the declaration that this will be hard. He's a prodigy and has always taken disappointment harder than others, because feeling like he's doing anything wrong feels like a disaster in the making. But he nods, solemn and committed. He has to help.]

You're the one that has to put up with this. I'm more worried about you passing out than my bad time.

[He's sincere. If Tony does a bad job, it means someone else suffers. Still, he does as directed and looks in Stephen's pack pocket for the tweezers.]

I'll be careful. I promise.

[ooc: I won't stop you. I'm enjoying it!]