If anyone else had brought Tony food, he would still be on edge and waiting for what they expected in exchange, and they wouldn't have even gotten through the door. At least the shop talk let Tony meticulously rebuild the facade that Steve had knocked off of him by letting him so close, pushing his shoulders back and arranging his face into cool control. "I'm on a clock," he protested. "I had a week, and I'm already cutting it close. I was wasting time making radio towers, but the brief was something that could be carried, and I'm--Don't you think I should have been able to make one spaceship by now? I've been too focused on, I don't know--not on helping, on telling myself that I'm helping. If I do this, if I listen for once, maybe I'll actually do some good. I'll sleep when I'm done."