Before you..

I figured it out..

Those who lash out, need to find acceptance.  

Those who are bitter, need to find gratitude.

At least, I think I've figured part of life out.  It's psychology.  The opposite in some cases are true.  When a person acts out in a behaviour you don't find acceptable, they are in need of something and are not sure how to ask for it.  

What we tend to do in protective mode is lash back or out at the one that is lacking the ability to communicate.  

Next time this happens, take a few things back..

Your step, your breath and your thoughts.  

Don't make a move until you've evaluated the situation.  Do this not only for the other person, do it for your sanity.  Do it for the simple fact that you don't want to own the hurt you put on another.