LONDON, UNITED KINGDOM - SEPTEMBER 21: Prince William, Duke Of Cambridge holds a cardboard hand with the names he wrote down of five people he would turn to in the event of bullying, from left, Catherine, Harry, Father, Grandmother, and Grandfather, as he takes part in a group exercise during his visit to Hammersmith Academy to support the Diana Award's Anti-bullying Campaign #Back2School on September 21, 2015 in London, England. The Diana Award was set up in memory of Prince William's mother Diana Princess of Wales. (Photo by Matt Dunham - WPA Pool/Getty Images)