A fighting bull loses its balance during the third day of the San Fermin running-of-the-bulls on July 8, 2011 in Pamplona, Spain. Pamplona's famous Fiesta de San Fermin, which involves the running of the bulls through the historic heart of Pamplona for eight days starting July 7th, was made famous by the 1926 novel of U.S. writer Ernest Hemmingway called “The Sun Also Rises”. (Photo by Denis Doyle/Getty Images)

Brazilian gymnast Jade Barbosa is seen during a training session at the new Brazilian Artistic Gymnastics Center in Rio de Janeiro January 16, 2015. The Artistic Gymnastics Center is where gymnasts are preparing for the 2016 Olympics. (Photo by Sergio Moraes/Reuters)

Residents (R to L) Luiza, Janubie, Leiticia and Lucas sit beneath an overpass near their houses in an impoverished area in the unpacified Complexo da Mare slum complex, one of the largest “favela” complexes in Rio, on March 18, 2014 in Rio de Janeiro, Brazil. (Photo by Mario Tama/Getty Images)

A penitent flagellates himself during a Holy Week procession on April 21, 2011 in San Vicente de la Sonsierra, Spain. The penitents called Los Picaos flagellate themselves during the Holy Week processions. (Photo by Denis Doyle/Getty Images)

A woman looks out of a dusty window after boarding a bus to be transported to see the casket of Nelson Mandela at the Union Buildings in Pretoria, South Africa, Wednesday December 11, 2013. On Thursday, December 5, 2013, Mandela died at the age of 95. (Photo by Markus Schreiber/AP Photo)

A light-up bow whose arrows are advertised as flying up to 145 feet and the “Catapencil” – a pencil with a miniature slingshot-style launcher on its end – are on an annual list of unsafe toys released Wednesday by a Massachusetts-based consumer watchdog group. World Against Toys Causing Harm, or W.A.T.C.H., issued the “10 Worst Toys” list to remind parents and consumers of the potential hazards in some toys as the holiday shopping season gets underway. (Photo by Charles Krupa/AP Photo)

Comedian Jeffrey Ross (C) arrives at Comedy Central's Roast of Charlie Sheen held at Sony Studios on September 10, 2011 in Los Angeles, California. (Photo by Christopher Polk/Getty Images)