EPSOM, UNITED KINGDOM - JUNE 04: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Queen Elizabeth II bites her nails whilst watching the racing from the balcony of the Royal Box as she attends Derby Day during the Investec Derby Festival at Epsom Racecourse on June 4, 2016 in Epsom, England. (Photo by Max Mumby/Indigo/Getty Images)