When a member of Oxford's notorious Bullingdon Club hurled a pot plant through a restaurant window, he was maintaining a tradition going back generations. It was what Evelyn Waugh called "the sound of the English county families baying for broken glass".
The Prime Minister, David Cameron, the Chancellor, George Osborne, and the Mayor of London, Boris Johnson, were some of the best-known members of the club – an elite dining society notorious for its drunken excesses. It has a tradition of "omerta", a code of silence, among its members.
http://www.independent.co.uk/news/uk/politics/so-boris-rioters-make-you-angry-what-about-your-bullingdon-pal-2341385.html