Students from St Andrew's University indulge in a tradition of covering themselves with foam to honour the “academic family” on October 20, 2014, in St Andrews, Scotland. Every November the “raisin weekend” which is held in the university's Lower College Lawn, is celebrated and a gift of raisins (now foam) is traditionally given by first year students to their elders as a thank you for their guidance and in exchange they receive a receipt in Latin. (Photo by Jeff J. Mitchell/Getty Images)

Performers in costume perform in the rain during the parade on the second day of the Notting Hill Carnival in west London on August 31, 2015. Nearly one million people are expected by the organizers Sunday and Monday in the streets of west London's Notting Hill to celebrate Caribbean culture at a carnival considered the largest street demonstration in Europe. The Notting Hill Carnival started in the 1960s, when the area had a large population of immigrants recently arrived from the Caribbean and was notorious for its slums – a far cry from today when it is one of London's most expensive places to live. (Photo by Leon Neal/AFP Photo)

J. Schwartz (C) and Marianne Wittelsberger (2nd R) of Consumer Watchdog dress as members of the “Google Track Team” in a hallway of the Dirksen Senate Office Building prior to a hearing on Google September 21, 2011 on Capitol Hill in Washington, DC. Members of Consumer Watchdog attended the antitrust hearing dressed as the “Google Track Team” in white tracksuits emblazoned with Google's motto, “Don't be evil”, wearing “Wi-Spy” glasses and pretending to track unsuspecting people during the event. (Photo by Alex Wong/Getty Images)

An Anti-Capitalist protestor from the Occupy LSX movement at St. Paul's Cathedral on February 22, 2012 in London, England. (Photo by Matthew Lloyd/Getty Images)

Twenty five life-size donkeys have been given pride of place in St Paul's Cathedral as part of an interfaith exhibition. They've been painted by Egyptian and Western artists, to show solidarity for the people of Egypt. Photo: Artist painted donkey statues are displayed in the “Caravan” exhibition on August 30, 2013 in London, England. (Photo by Peter Macdiarmid)

Australian knight Philip Leitch (R) has a floral basket on his helmet smashed by an opponent at the St Ives Medieval Fair in Sydney, one of the largest of its kind in Australia, September 25, 2016. (Photo by Jason Reed/Reuters)

Local actor Colin Retallick plays the role of St. Piran during the annual processional play to celebrate St. Piran, patron saint of tinners and regarded by many as Cornwall's premier saint, on March 4, 2012 in Perranporth, England. (Photo by Matt Cardy/Getty Images)

A group of young women have 'a bit of a do' for Oxfam at St Pancras International and enjoy a screening of the nation's favourite chick-flick Dirty Dancing on February 28, 2011 in London, England. Oxfam is calling on women across the UK to get together with their female friends in March to celebrate women's achievements for the 100th anniversary of International Women's Day (March 8, 2011) and raise money to support their work with women living in poverty. www.oxfam.org.uk/do (Photo by Ian Gavan/Getty Images for Oxfam). LONDON, ENGLAND – FEBRUARY 28