After being filmed today by ITV London getting stuck on a zipwire, Boris Johnson spoke to radio station LBC 97.3. He said:
You may remember a long time ago, I fell in a river in order to promote volunteering. It was in exactly the same spirit that I brilliantly decided to come to a juddering halt in the middle of the zip-wire in order to promote our wonderful live site at Victoria Park. Get on down to Victoria Park, folks. Free entertainment, hog roast, you name it. It turned out I was the Yuri Gagarin of the zip-wire. I was testing it.