Mr. Black retired（退休）five years ago, now he lives a happy life, he exercises in the morning, he plays with his grandchildren on weekends, sometimes he goes to parties.

    One Sunday evening, after Mr. Black had dinner, he went out for a walk with his granddaughter Jane, they saw three beggars（乞丐）outside the park.

    "Why do they beg in the street?" asked the little girl. "Because they're poor," answered Mr. Black.

    "Why don't they find any work?" "Because they're lazy." "Do you know who is the laziest of them?" "That's easy," said Mr. Black, he came up to them, took out five dollars and said, "I'll give the money to the laziest of you. Tell me who he is."

    "I lost my job a year ago," the first beggar stood up quickly and said, "of course I am!"

    "I haven't done any work for two years," the second beggar sat up and said, "give me the money."

    The third beggar went on lying on the ground and said, "Come over here, sir, put the money into my bag!"