"You can find your average, amateur killers on every street. They’re mostly deranged or drunk or some poor woman who’s had a hard day and the husband has raised his hand once too often and suddenly twenty years of frustration takes over. Killing a stranger without malice or satisfaction, other than the craftsman’s pride in a job well done, is such a rare talent that armies spend months trying to instill it into their young soldiers. Most people will shy away from killing people they haven’t been introduced to. (p. 134)"