[Pause, a pretty significant one and for a while it looks like he might just not answer. But they're past that, aren't they]
She's a paranoid schizophrenic. If she didn't have 24 hour supervision she wouldn't even remember to feed herself. [It sounds harsh and perhaps it is, but this is always about fear. Not unkindness. And just to put that particular point across, he looks up at her.] Did you know that schizophrenia is hereditary..?