A driver is stuck in a traffic jam on the motorway, Nothing is moving. Suddenly a man knocks on the window. The driver rolls down the window and asks "Whats going on?" "Terrorists have kidnapped Tony Blair, John Prescott, Gordon Brown and John Reid. They're asking for a Â£10 million ransom, otherwise they are going to douse them in petrol and set them on fire. We're going from car to car, taking up a collection" The driver asks "How much is everyone giving on average?" "About a gallon" was the reply.