From Dr. Martha Stout's influential work The Sociopath Next Door , we learned how to identify a sociopath. Now she tells us what to actually do about it. While the best way to deal with a sociopath is to avoid them entirely, sometimes circumstance doesn't allow for that. What happens when the time comes to defend yourself against your own child, a boss, or ruthless ex-spouse? Inspired by the many chilling and often heartbreaking emails and letters...