XFM - Karl Is Annoyed At Builder & Nelson Mandela's Birthday

Karl explains why he's always miserable and considers leaving XFM, but Ricky and Steve will leave if he does. Karl is also annoyed at the builder that's currently working in his flat and slags him off on-air, but is later concerned said builder might be listening to the radio. It's also Nelson Mandela's birthday and 20,000 people are turning up.