Your stomach's churning; you're hyperventilating – you're in a badly deteriorating conversation at work. Such exchanges, which run the gamut from firing subordinates to parrying verbal attacks from colleagues, are so loaded with anger, confusion, and fear that most people handle them poorly: they avoid them, clamp down, or give in.But dodging issues, appeasing difficult people, and mishandling tough encounters all carry a high price for managers and companies – in the form of...