“The retired seamstress Margo Glantz didn’t wake her son until after dinner. During the preceding week, Margo Glantz, who suffered from insomnia, had been feeling irritated by the presence of her son, David Miklos, who, for his part, suffered from narcolepsy. David Miklos had lost his job at the checkout in the Farmacia del Ahorro because he’d fallen asleep on more than one occasion.”