Despite the fact that her comment seems to be primarily intended for herself, Devero answers it earnestly. "It's not, where I come from."

When she does actually respond, he looks a little taken aback. Both because he's used to getting specific, actionable answers to that question, and also because 'don't be cruel to others' seems like it should be a given. Where he comes from, it is.

But from a world with asylums for the mad? Perhaps not so much. So he nods seriously. "I'll make sure to continue. And if I say or do anything cruel to you, I hope you'll understand it's meant in ignorance and feel free to correct me."