Proverbs 29:11 – A fool gives full vent to his anger, but a wise man keeps himself under control. (NIV 1978)
My Musings – Anger is not always bad. Losing control, allowing it to lead us into sin is bad.
My Advice – Make sure you control your anger, rather than letting it control you. Ask yourself if the issue is worth getting angry about. Sometimes it will be. But even then, there is a proper way to display it that allows you to show your displeasure without losing control. You are also more likely to make your point in this manner.