Recently, a friend of mine lost a job that paid hundreds of thousands of dollars a year. It happened because he allowed himself to get pulled into a dangerous power struggle with a bad boss. He mistakenly thought that, if he pressed his case strongly enough, he would win.

Each time we spoke, he described how the conflict grew, intensified and deepened. But he was so entrenched and emotionally involved in it that, no matter how much we talked, he would step ever deeper into the mire. He finally crossed the line the boss was waiting for him to cross, and the company asked for his resignation.