[He slides a dry look John's way out of the corners of his eyes.]

Everybody loves a good explosion.

[But as to the rest. Tony stares off at nothing as he tries to figure out how to put everything into words. Most of the time, trying to describe what he does just sounds like he's showing off. Which Tony very much is not averse to, but for some reason at the moment he'd like to be taken seriously.]

I'm an engineer, mainly. You name it, I can fix it. Probably. Or at least make it look more impressive.