A driver is stuck in a traffic jam on the highway. Nothing is moving.
Suddenly a man knocks on his window.
The driver rolls down his window and asks, "What's happening?"
"Terrorists have kidnapped Hillary Clinton, Barack Obama, and John McCaine.
They are asking for a $10 million ransom. Otherwise they are going to douse them with gasoline and set them on fire.
We are going from car to car, taking up a collection."
The driver asks, "How much is everyone giving, on average?"
"About a gallon."