"When you get to tell someone off, you might feel pretty good for a while, but somehow the sense of righteous indignation and hatred grows, and it hurts you. It’s as if you pick up hot coals with your bare hands and throw them at your enemy. If the coals happen to hit him, he will be hurt. But in the meantime, you are guaranteed to be burned."
Many persons believe that in a conflictual situation, they can control others by using excessive anger and that this is a permanent solution to the conflict. This may apply in the short term if the other person becomes fearful as in the case of a child, and caves in to your demands but it is generally not true in the long term.