A driver is stuck in a traffic jam on the highway. Nothing is moving. Suddenly a man knocks on the window. The driver rolls down his window and asks, "What's going on?"
"Terrorists down the road have kidnapped Stephen Harper, Stephane Dion & Jack Layton. They're asking for a $10 million ransom otherwise they're going to douse them with gasoline 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?"
"Most people are giving about 4 liters."