One hundredth guest

Noon rush hour passed, the originally crowded snack bar, the guests have dispersed, the boss was about to breathe through the newspaper when someone came in. That's an old woman and a little boy.
"how much is a bowl of beef soup and rice? "Grandma sat down and took out her purse and counted the money. She ordered a bowl of rice soup, a steaming soup rice. Grandma pushed the bowl to her grandson. The boy swallowed saliva and looked at Grandma and said:
"Grandma, have you really had lunch? "of course. Granny chewed slowly with a piece of pickled radish. In a flash of kungfu, the little boy ate up a bowl of rice.
The boss saw the scene and went up to the two men and said, "Congratulations, old lady, you are so lucky today that you are our one hundredth guest, so it is free." One day, more than a month later, the little boy crouched across the street from the snack bar, counting something that startled the owner, who was looking out of the window.
It turned out that every time the little boy saw a customer enter the shop, he put the pebbles into the circle he had drawn, but the lunchtime was almost over, and the pebbles were less than fifty.

The impatient boss called all the old customers and said, "busy?" It's nothing. I want you to come and have a bowl of soup. It's my treat today. "after calling a lot of people like this, the guests started arriving one by one. "81, 82, 83." The little boy is counting faster and faster. When the ninety-ninth pebble was put in the circle?
At that moment, the little boy took his grandmother's hand hastily and went into the snack bar.
"Grandma, it's my treat this time. "said the little boy, somewhat triumphantly. Grandma, who really became the 100th guest, had her grandson serve a bowl of steaming beef soup and rice. And the little boy, like her grandmother before him, chewed on a piece of pickled radish in his mouth.
"give the boy a bowl, too. "said madame, unable to bear it.
"the little boy is learning to be full even if he doesn't eat! "replied the boss.
Snoring. The granny, who ate with relish, asked her grandson, "do you want to save some for you?" "
Unexpectedly, the little boy patted him on the stomach and said to his grandmother, "No, I'm full. Grandma, look. "
A thought of kindness fosters a seedling,
A young tree can grow into a forest,
Everyone has love and society has affection.