Diary: Hegarty is irresistible

You know you have made it when you have your very own imposter. Nevertheless, Sir John Hegarty was not thrilled to discover that his identity has been stolen on Twitter.

The Tweets of John_Hegarty, which include such gems as "If we can't find the right answers perhaps we are asking the wrong questions" are, you will be relieved to learn, those of a phoney. Despite the endless cliches and spelling mistakes, John_Hegarty has attracted more than 3,500 followers and even those who realise he's not the real thing are smitten. A recent Tweet from R/GA says: "For a fake @John_Hegarty speaks a lot of truth."