Gotta say, he really did deserve it! I don't mean to assume this dude was drunk, but he sure looks like it, and he couldn't be a big enough jerk to make this decision sober...but I could be wrong.  Dude in the video comes up to a street performer, who is just trying to put on a good show, and starts messing with him.  Jabbing him, pulling on his hat, then he ups the ante and gives him a wet willy.  I feel bad for the street performer until I'm satisfied when he gives the jerk a punch to the nose.