Living with Tony would probably take a lot of adjusting to - and not only because Tony threw money around in a way that most would consider beyond lavishly. He was just -- well. He was Tony Stark. There was no better way to explain it, really. Luckily, Tony had had some experience living with others now - due not only to having Bruce around these last few months, but also because of the giant Tower back home, which had had some fun sleepover times with superheroes before everything had sort of just gone to shit.
Anyway, just because he was perpetually hopped up on coffee and rarely slept didn't mean he didn't usually know how to mind his own space. Usually.
"You went one on one with Captain America," Tony agreed a bit absently even as he went on tinkering with the stuff on the desk. Now that he was here, he was absolutely not going to mind his own business. You couldn't just put tech in front of him and not expect him to make it better. "I know you're tough." He paused, looked over at Peter. "The junkyard? Huh. I mean. I guess I've worked with less but why?" Because there was a difference between a challenge and just... making things harder on yourself than was absolutely necessary. This was that.