Call it a lucky guess. [From what she's observed so far, he's the sort who would rather watch from the sidelines and make remarks than get involved himself. But that's only what she's picked up on, based on this message he's made.]

You do know that there's a flying creature on the loose now, right? [The roof is probably the worst possible place to be at the moment.] Or are you not concerned because you'll heal from whatever it does to you?