[Bruce returns the smile with a small, but genuine one of his own as he opens the door for Harry. Harry isn't the only gentleman there, despite Bruce's other half.]

I'd be a little concerned if you were somehow standing here talking to me and you weren't alive. [Despite his teasing, which probably says something about his life and the kind of friends he keeps that he can even joke about it, there is a tangible sense of relief that Harry came out of whatever situation he'd been in alive.]

And I have, yes. I've been catching up on some research I'd fallen behind in reading. It's easy to get distracted when you're working with someone like Tony; he takes multitasking to a whole new level, even for me.

[and then there was the whole incident with the killer robot, but he's decidedly not talking about that yet]