That was Nick Griffin getting pelted with eggs by UAF protesters. An undemocratic reaction? I say pretty mild in comparison with what his rank and file get up to on the streets.
Interestingly, The Guardian reports that Griffin was saved when his "bodyguards" intervened to escort him to the safety to his flash car. BNP bodyguards? The BNP is made up of bouncers, both literally and figuratively. How hulkingly enormous must these BNP bodyguards be?