" For anger, you can ask yourself what is its use? It may help to think of the Dalai Lama’s story of his driver, who was so angry about banging his head into the fender of the car that he banged his head into the fender of the car. Anger often involves some disappointment or frustrated expectation. Ask yourself, “What was my expectation? Can I release it and accept what is or how others are rather than how I think they should be? Can I also acknowledge my part in the conflict? Can I see my part in contributing to the situation I am angry about? If I am angry about what has been said, can I see that these are just words that no longer exist, that, like all things, they are impermanent? Will my anger benefit anyone, including me?” You could also reflect on how, if not contained, anger can lead to destructive action—from saying hurtful things to outright violence—that we later regret. Contemplate how anger can destroy relationships, alienate others, and rob you of your peace of mind. "
― Dalai Lama XIV , The Book of Joy: Lasting Happiness in a Changing World