誰有短小的寓言故事，是英文的

Once upon a time, there was a boy who lived on a farm_ Every day he had to take his father’s sheep to a hill. One day, he was so bored that he decided to play a trick on others. He cried wolf, wolf loudly. When everyone came to help him, he just laughed at them and said there was no wolf at all. He played the same trick for several times and nobody believed him anymore. Then one day a wolf really came. Wolf, wolf cried the boy, as loudly as he could. Nobody came to help him this time. Many sheep were killed by the wolf, and the boy was very sorry.