A rich American went into a shop in London．He wanted to buy a nice looking watch．He saw a watch and he liked it．But the shop owner asked 500 dollars for it．Just then a young man came in，took the watch out of the owner's hand and ran out with it. It all happened in a minute．When the owner ran out into the street，the young man was already gone.

    The American walked out of the shop．At the next corner，he saw the young man with that watch in his hand“Do you want to buy a fine watch，sir？”he said in a low voice，“It's made in Germany．It's only 100 dollars”

    “The young man didn't know I saw what happened in the shop just now，”he thought．The American paid at once and went back to his room with the watch．He was happy and told his friend about the fine watch

    His friend took a look at his watch and started laughing．He said，“You are a fool. This watch isn't worth even 10 dollars．”