Psychotherapist Brad Blanton claims that people should be "radically honest" -- meaning that they should say what they think all the time. (See http://www.esquire.com/features/honesty0707) Is that a life-serving policy -- or simply an excuse for rudeness? For example, if my friend is telling me a story that I don't care to hear, should I tell her of my disinterest? Would that foster a more authentic and valuable relationship? Should I try to gently signal my disinterest? Or should I try to cultivate some interest in her story? In other words, is tact a value -- or a destructive form of pretense?