#1 on Digg for an entire day.
We don't get to see the beginning of the argument, but it's hard to imagine old man winter starting shit with a black kid who looks like he's specifically outfitted himself to make white people lock their car doors when they see him on a street corner. Not that it matters. Even if you were one of the few people who didn't come to the video from a blog or portal promising a fight, the description below the video, ("BLACK GUY GET HIS ASS WHOOPED BY OLD WHITE GUY. SMH"), makes it clear that you're not here to watch these two solve their disagreement with words.
The description's use of grammar would indicate words are of very little importance in general.
As the argument escalates Bruso walks to the front of the bus, the thug follows and tries to hit him. It is at this point that the old man stands and reveals that he is Epic Beard Man, a tightly coiled blender of ass whoop in disguise. He lands a number of punches to the center of the "would be tough guy's" suddenly not so intimidating face. After a few seconds standing over his vanquished attacker talking shit like Ali in Zaire, Bruso exits the bus which is now covered in blood. This seems appropriate since we've just witnessed the live birth of an internet legend.