How do we take anger as a guide? How can we use it skillfully? When we see ourselves getting angry, we might be able to catch some insight into the path ahead.
You are in this situation, this conflict, this struggle and you can either figure it out or get swept away in it. You can resolve it or escalate it. You can pacify the problem or you can blow it up. You can minimize the damage or you can involve everyone who could possibly be involved. Cool it or heat it up.
So you are faced with a choice. When you are angry, do you apply the principles of your practice or do you escalate the problem?
Part of this is failing. You will get angry. You will lose your temper. You will snap back. Don't beat yourself up. But do look closely, when anger showed is ugly face, was there a moment when you tried to work with it? Were you able to dance with it, just for a bit?
Fail. And fail. And fail some more. It is worth the effort to keep practicing.