My brother sent the candidates free of charge, and some candidates left without thanking them. What do you think of this matter?

Tell me about my personal experience. I am a candidate for the 20 16 college entrance examination. At that time, there were charity driving activities organized by private cars to pick up and drop off college entrance examination candidates for free (posters were posted on the cars), and a few taxis posted the slogan of charity driving independently, and most taxis operated normally. When I took the college entrance examination, the examination room was far from home, so I kept taking a taxi. In order to facilitate the exam, I wear a high school uniform. When I was taking a taxi by the side of the road, a private car stopped in front of me, with the slogan "Love to Test" written on it. The owner asked me if I was a candidate for the college entrance examination, and I said yes, so he let me in. I think they are very nice people. Say thank you when you get on the bus, chat with the owner on the bus and say thank you when you get off at the examination room. On my way home, I took a taxi at the entrance of the examination room school, ready to go home. Because it's a taxi, I thought it was a normal deal. After getting on the bus, I told my destination normally and didn't speak again. The driver pulled others halfway, chatting with others while talking about the college entrance examination. I forget what he said to that man, but I remember the last sentence he said. He said to me, "Are you a candidate?" If so, show your admission ticket when you get off the bus, and I won't charge you. "It seems that he is giving me charity, as if I would be greedy for the benefits of this dozen dollars. I didn't say anything, sneered in my heart, and got home and took out the money and got off the bus. Yes, I want to say that no one can afford this dozen dollars, and no one does not pay it. No one asked for the action of picking up and dropping off candidates for free. The action organized by private car owners, the drivers who post free shuttle service in taxis, they are good people and kind people. They send candidates into the examination room with love and trust. They deserve respect and gratitude. However, different situations will lead to different results. If you don't put up the free pick-up sign, your taxi will operate normally, and no one will think you are wrong. No one will think that it is natural for everyone to pay for a taxi. If you show me the admission ticket, I won't charge you, making it look like I'm taking advantage and you're giving alms. I have nothing to think about except laughing.