Carter: Have these guys submit to a drug test!
Stark: Do you have evidence that they're taking something illegal?
Carter: Well illegal, no, but that body was pumped with something from your lab. And whoever gave it to him, is looking at possible murder charge.
Stark: Assuming that's true, um, how do you know anybody else is taking it?
Carter: I have my reasons.
Stark: I'm listening...
Carter: These guys... are eating way too much.