The reality of this harm usually passes very quickly and so do your emotions.
However, your imagination may take over and create worse scenarios.
Other problems are created when you do not have the awareness and will power to refrain from outbursts of your anger.
A mother bear will also go into ferocious anger if you were to come near her cubs.
Anger is a force of energy that we project in order to push away or combat a threat.
After the real physical threat passes your mind still projects scenarios in the imagination.
Your emotions then respond to those imagined scenarios.