There's not much she could have said to better demonstrate she's not in her right mind. Hostility and fear could be reasonable reactions to a lot of things, but she knows him too well to think he's in any way capable of trying to kill her. It's not even a morality thing, though he'd like to think she knows that, too. She just has a lot more direct experience with his clumsy cowardice than any particular virtue. He couldn't if he wanted to.

But if there's one thing he understands, it's a mind misfiring. He keeps his hands visible and empty and takes a small but firm step backward. No threat posed, and given Bodhi's total disinterest in his own appearance, he's just in scrubs and not even carrying his backpack at the moment. It should be obvious he's not armed. "I wouldn't dare if I wanted to. Did something happen?"