STOP

Stop - don't do or say anything at the peak of emotion of a stressful situation.

Take a step back - even when the time and space is limited, take a step back. Walk out, breathe.

Observe the situation - what exactly is the problem? What is happening?

Proceed mindfully - as you have observed the situation, your thoughts, and your feelings regarding the situation, proceed mindfully in terms of speaking and behaving.