Robin Williams As Troops ‘Retreat’ On Him [VIDEO]

Robin Williams was such a huge figure -- he was a brilliant comedian, and an Oscar-winning actor, of course -- but was also quite the humanitarian, raising money for many different causes. He also spent many hours during the holidays overseas, performing for our troops with the USO. Here's a cool video that shows how Robin reacted when, in the middle of his performance, his audience of military personnel suddenly turned their backs on him in (what he jokingly called) 'retreat'...