fight club anyone?

http://www.youtube.com/watch?v=lOIe6Cw5AFg
http://www.youtube.com/watch?v=fr12uc-nr1Y
http://www.youtube.com/watch?v=Lg5x5Eo43hw (long one)

russians are weird... as a matter of fact, there has been a tradition of, not even sure what they would be called other than "mass fights" in russia since i believe XV century as a form of entertainment.