Well, the guy he was fighting was the size of my little sister, but it was nice to see a punk get his ass handed to him.
Its amazing how much of a fight is mental. Ever wonder why and older brother can beat up/intimedate his younger brother, even when they get older and the younger brother is bigger?? Or why a small horse at a barn is the top on the pecking order?? Its all about attitude and mental agression/submissiveness. Once a person decides in their head that they are in trouble, they become cowering and defensive. They have a hard time letting their fists go in a fight and usually end up in a ball covering their heads. Its what makes so called crazy people so tough.
The fight in the video is the perfect example. Some guy thought he was picking on some chump who would probably run away. When the guy got agressive and the punk realized he was overmatched, you could just see him deflate. At that point the punk was all done, even if the kung fu guy was a joke. Once this fear hits someone, they go on the defensive and their only thoughts are how to minimize their ass beating.