So I am sitting in a Channel 5 Studio, make up on, mic trailing underneath my shirt, ready to talk with Jellyellie (yes, we met again today) about teenagers when we are asked to leave the studio before the cameras rolled. There was a more important news story, and we weren’t needed. I talked to Jellyellie in the green room: she was very clever and articulate. Her book on How To Be A Teenager looks very good. She cut to the chase: she asked me how often I checked my ratings on Amazon. I said not at all now: worrying about your book’s ups and downs on Amazon is guaranteed to make you unhappy.