Is there something simmering inside you? Are you ready to blow? To write an angry letter, make a phone call, to really let someone know what you think? On the stove near you is a tea kettle. Look at it. Is it close to boiling, or is it already pouring out steam?
Move the kettle off the burner, take a deep breath, and let it out slowly. Resolve to wait until your emotions have cooled before saying anything. Mull things over while you make yourself a cup of herbal tea. Can you see another viewpoint? Is there a way to de-escalate the situation? What would be the most positive outcome for everyone involved? What do you think you should do or say now?