Let’s call it emotional mugging: You’re going along minding your own business, and suddenly, when you least expect it, you’re faced with a shocking attack on your mood or peace of mind. Being emotionally mugged can be crippling, but because the damage is so often invisible, few of us are ever taught self-defense. Time to change that. You’re probably aware that the Asian martial arts, with their deft approach to handling attack, are popular practices for warding off physical muggers. Well, karate-do (“the way of the empty hand”) and bushi-do(“the way of the warrior”) have a psychological equivalent I call emo-do (pronounced “ee-moh-doh”): the way of the emotional master.