[The look he gives her says he is indeed trying to figure that out. She could just be trying to mess with him, but Tony has seen so many strange things that he can't really rule that out. It's totally possible.

But, again, she could just be messing with him.]

You're really not selling me on this health drink thing. They might be trying to see just how malleable we are. What if one of those turns me into a monster?

[He's just saying.]