Not only did revelations about MPs' inflated expenses claims become one of the biggest stories of the year, it also - unintentionally - provided one of the most memorable radio moments of the past 12 months. The devil was in the detail for BBC Radio 4's Today presenter Evan Davis, when he suffered a terminal fit of the giggles during a newspaper review and the subject of Sir Peter Viggers's £1,645 duck house. "Evan, just shush," admonished his co-presenter Sarah Montague. Fortunately for us, he couldn't.