"All sorts of new and interesting and wonderful things were happening, and it was exciting. And then I got my head bashed in at a demonstration against the Vietnam War during a visit that Lyndon Johnson made to the Century Plaza Hotel. My girlfriend was a reporter for the London Evening Standard and we were on our way to a party, and she said, "We should check this out." So we arrived there, and soon it turned into a police riot. It was interesting to see police losing control, because they were up against a world they really didn't understand – which was very non-aggressive, but they didn't know that."