Tony Stark: You know, I've got a cluster of shrapnel, trying every second to crawl its way into my heart.
[Stark points at the mini-arc reactor in his chest]
Tony Stark: This stops it. This little circle of light. It's part of me now, not just armor. It's a... terrible privilege.
Bruce Banner: But you can control it.
Tony Stark: Because I learned how.
Bruce Banner: It's different.
[Banner tries to read the computer screen, but Stark slides the data aside with his finger so the two can see face-to-face]
Tony Stark: Hey, I've read all about your accident. That much gamma exposure should have killed you.
Bruce Banner: So you're saying that the Hulk... the other guy... saved my life? That's nice. It's a nice sentiment. Save it for what?
Tony Stark: I guess we'll find out.
[Banner and Stark get back to work at their respective computers]
Bruce Banner: You might not like that.
Tony Stark: You just might.