People make the mistake of seeing violence in terms of sport or something they see in the movies...
In real life, you are likely to face situations different to those encountered
in the training hall, dojo or boxing ring.
A genuine assailant may be armed, they may have friends and they may have
severely hostile intentions towards you.
Remember that a classroom environment, a sporting event or a scene in a movie is a controlled situation.
There are rules.
In the street there are no rules at all...