A great blog post from Wim Demeere! Wim uses a video to discuss the dangers of not leaving when it is possible to do so, not considering the possibility of third parties getting involved, and self-defence vs. "Street Fighting":
The video Wim discusses is the one below. WARNING: This video contains violence and bad language!
Wim goes into detail on the points illustrated by this clip and you should read his blog post before commenting. The key points being that the opportunity to leave was not taken, that this was not self-defence but “street fighting” and hence the guy knocked out may very well find themselves on the wrong side of the law, and how there always needs to be an understanding that third parties – even those not associated with either participant – can always get involved, and involved decisively.
All the best,