A man is driving down a country road when he spots a farmer standing in
the middle of a huge field of grass. He pulls the car over to the side
of the road and notices that the farmer is just standing there, doing
nothing, looking at nothing. The man gets out of the car, walks all the 
way out to the farmer and asks him, "Ah excuse me mister, but what are 
you doing?"

The farmer replies, "I'm trying to win a Nobel Prize."

"How?" asks the man, puzzled.

"Well I heard they give the Nobel Prize to people who are out standing
in their field."