A young doctor made a house call to an old farmer who lived alone in a rundown barn. The farmer had been complaining of chest pains, so the doctor brought his medical bag with him.
As he was about to leave, the doctor tripped over a loose plank and fell face-first on the floor. His bag spilled open and his reflex hammer flew out. It soared through the air in slow motion and landed somewhere in a huge pile of straw.
The doctor got up and dusted himself off. He looked at his watch and realized he was running late for his next visit.
“Oh no! I need that reflex hammer right now!” he shouted in panic. “I have to have it for my next appointment! Can you please help me find it?”
The farmer looked at him with a blank expression.
“It’s good as lost now,” he said in a drawl. “We’d be looking for a knee tool in a haystack.”