One day an old man went shopping for clothes in a department store.There was a shop assistant who wanted to persuade him to buy a sweater,which didn't fit him at all.Of course the old man wouldn't like to.
The saleswoman said,"Why didn't you choose it?I know there may be some problems with it.But dont't you know that doing up fewer buttons can save your time?And it's more convenient for you to wipe off your sweat.Above all,you'll feel fresher and cooler."
The old man said nothing at first.After a while,he told the saleswoman,"Ok,I'll buy it." She was very happy.But the moment she saw he only pulled out a coin out,she was very surprised.She shouted,"No,come on,man.Is the beautiful sweater worth so little?"
The old man replied with a smile,"Yes,I think so.Don't forget that:Only one coin will make you easier to count the money,too."
The saleswoman said nothing with a red face,standing there still.The old man then took back his coin and gave the sweater back,saying "If you wouldn't like to do so,me too."