Tom, Dick and Harry went to a party. After the party they returned to the hotel. The hotel was 600 stories high.
Unfortunately for them, the elevator was not working. They made a plan for the first 200 stories, Tom will crack jokes.
The second 200 stories Dick will tell a happy story and lastly Harry will tell a sad story.They then started up the steps
After 2 hours it was Harry's turn. He turned to the other two and said "Ok guys, here's my sad story. I forgot the keys downstairs.