Yet, that's exactly what successful managers must do. They can't afford the luxury of a temper that makes them say and do foolish things and sour their relationships with their people. The most important time to hold your temper is when the other person has lost his. When someone else starts to grow angry, never respond in kind, no matter what the temptation. But people who are reasonably content with their work and their bosses seldom go out looking for other jobs.
Some bosses have a higher turnover among their people than others, sometimes embarrassingly so.
And often it's the better people who leave. This can be a costly and frustrating problem. Sometimes, people are offered opportunities or salaries that are so extraordinary that you cannot possibly match them. All you can do in such cases is let them go and wish them good luck. But don't be too sure.