 In 2012, China's first masturbation contest was held in Shenzhen, China in celebration of World AIDS day.The event's organizers explained that the contest aims to promote masturbation as the safest means of sex and as an effective means for avoiding HIV infection.Montreal's first Masturbate-a-thon (aka "Wankfest") was on 4 May 2013 and raised money for the charity Head and Hands, a youth sex education and outreach organization, and Sexploreum, an adult education group dedicated to encouraging playfulness with sexuality.