One of the most interesting cases is that of a psychiatrist identified by the pseudonym Nathan, whom Stout knows professionally but has never seen as a patient. When Stout has dinner with Nathan and his wife Melissa at their house, she takes part in a remarkable conversation. Melissa is complaining, among other things, about her husband's having "the world's most convenient memory." She says that when she asks him to discuss certain issues with her, "he'll say he doesn't know what I'm talking about, and then he'll ask me for an example, and when I give him one, he'll say it never happened." She finds this maddening, not least because Nathan seems so convinced of it. "It would be as if, maybe, you called me tomorrow and thanked me for dinner, and I said, 'What dinner?' and then I told you that you hadn't been here, and I didn't have the slightest idea what you were talking about. It would make you nuts, right?"