主题：Lessons to make you think about the way we treat people

First Lesson - Pickup in the Rain

        One night, at 11:30 p.m., an older African American woman was standing on the side of an Alabama highway trying to endure a lashing rainstorm. Her car had broken down and she desperately needed a ride. Soaking wet, she decided to flag down the next car. A young white man stopped to help her, generally unheard of in those conflict-filled 1960s. The man took her to safety, helped her get assistance and put her into a taxicab. She seemed to be in a big hurry, but wrote down his address and thanked him.

        Seven days went by and a knock came on the man's door. To his surprise, a giant console color TV was delivered to his home. A special note was attached.. It read: "Thank you so much for assisting me on the highway the other night. The rain drenched not only my clothes, but also my spirits. Then you came along. Because of you, I was able to make it to my dying husband's bedside just before he passed away... God bless you for helping me and
unselfishly serving others."  Sincerely, Mrs. Nat King Cole.

Second Lesson - Always remember those who serve.

        In the days when an ice cream sundae cost much less, a 10-year-old boy entered a hotel coffee shop and sat at a table. A waitress put a glass of water in front of him. "How much is an ice cream sundae?" he asked. "Fifty cents," replied the waitress. The little boy pulled his hand out of his pocket and studied the coins in it. "Well, how much is a plain dish of ice cream?" he inquired. By now more people were waiting for a table and the waitress was growing impatient. "Thirty-five cents," she brusquely replied. The little boy again counted his coins. "I'll have the plain ice cream," he said. The waitress brought the ice cream, put the bill  on the table and walked away. The boy finished the ice cream, paid the cashier and left.      When the waitress came back, she began to cry as she wiped down the table. There, placed neatly beside the empty dish, were two nickels and five pennies.... You see, he couldn't have the sundae, because he had to have enough left to leave her a tip.

Third Lesson - The obstacle in Our Path.

        In ancient times, a King had a boulder placed on a roadway. Then he hid himself and watched to see if anyone would remove the huge rock. Some of the king's wealthiest merchants and courtiers came by and simply walked around it. Many loudly blamed the King for not keeping the roads clear, but none did anything about getting the stone out of the way.

        Then a peasant came along carrying a load of vegetables. Upon approaching the boulder, the peasant laid down his burden and tried to move the stone to the side of the road. After much pushing and straining, he finally succeeded. After the peasant picked up his load of vegetables, he noticed a purse lying in the road where the boulder had been. The purse contained many gold coins and a note from the King indicating that the gold was for the person who removed the boulder from the roadway. The peasant learned what many of us never understand!
Every obstacle presents an opportunity to improve our condition.

to give tip is a custom in overseas country.

Not nowadays. Consumers usually dont have to give tips when there is a surcharge of service charge which is about 10-20% on their bill.

Of course, tips are very welcomed to be paid if one wants to show off great generosity or wishes to display appreciation of receiving good service.

generally,the customer always say keep change after bill, (i mean in the restaurant) that's only one pound or two poud ,maybe much more ,i am not sure.but what i want to say is taht i don't think about the coustomer want to show off their great generosity as you said. i think this is the kinds of social culture and proprieties.