What has prompted the anger? That this happened at all? That it was videotaped and put up on You Tube? That someone just stood there and watched and filmed it?

I've seen news reports of fights on You Tube, and it is revolting. For example, this one really gets me:

http://www.nj.com/news/index.ssf/2012/01/hockey_brawl_on_video_woodbrid.html

President Emeritus of the Neal Pulcawer Fan Club