Many people fantasise that they are their favourite Rock or Pop music idol or Hollywood star. Psychologists say there is nothing wrong with taking an active interests in the lives of celebrities by way of collecting press cuttings, personal memorabilia and so on. Unfortunately this interest can spill over into obsession as the fan comes to believe they ARE their hero. It seems this was the case with Christopher Walkden, Customer Services Clerk who believed he was Hollywood superstar actor Christopher Walken.