Mrs. Su is a retired teacher. Since she accidentally fell six months ago, her right leg has been disabled. Her family bought her an electric wheelchair for transportation and encouraged her to go out of the house to relax.

This morning, Granny Su sat in an electric wheelchair and came to the entrance of the vegetable market alone. At this time, there was traffic on the road, and several vendors were hawking along the street, so it was lively. Granny Su was happy to see it, and suddenly someone shouted, "The chengguan is here, run away..." Before the voice fell, the vendors put away their stalls and fled.

There was an elder sister who sold taro, and her hands and feet were a little slow. Seeing that the chengguan's car coming, the elder sister gritted her teeth and didn't even want the taro, so she ran away. When the chengguan arrived, there was only a pile of taro dozens of catties left at the entrance of the vegetable market.

Soon, a young man in a chengguan uniform walked over, pointed to the ground, and asked politely, "Auntie, is this your taro?"

Old Mrs Su looked down at the taro, knowing that the young man had misunderstood, but then she thought about it, if she didn't admit it, the taro would probably be confiscated by the chengguan. What can the chengguan do to a lame old lady? Maybe, he will let himself go, so won't he help the big sister who sells taro?

Thinking of this, Mrs. Su made up her mind, nodded and said, "It's my taro! Alas, I'm old and my legs and feet are inconvenient, so I can only make a living by doing a small business!"

The young man asked suspiciously, "But you can't move, how did you put the taro out?"

Old Mrs. Su said lightly: "That's not easy? In the morning, my son will help me transport the taro; after the morning market, come and help me close the stall!"

The young man shook his head again and again: "Why is your son like this? Not to mention that this is a major traffic road, you can't set up a stall on the side of the road, let alone throw you an old man on the road, it's too dangerous!" Old Mrs. Su was speechless.

The young man sighed and said, "Auntie, forget it this time, I will help you send the taro home, where do you live?"

Old Mrs. Su said stubbornly: "I'm not going home, I want to wait for my son to come!"

Seeing Old Lady Su's tough attitude, the young man could not help it: "Auntie, is this okay? I will help you move the booth inside, it will be safer, stay, don't put it out next time!" After settling Old Lady Su, the young man got in the car and left.

A few minutes later, all the vendors popped up like bamboo shoots after the rain. The big sister who sold taro took Mrs. Su's hand and thanked her all the time: "Auntie, thank you so much, otherwise I wouldn't be able to get away! Come, I'll give you some taro to try!"

Granny Su smiled and said, "No need! It's just a matter of raising your hand!" After that, she drove off in an electric wheelchair. Along the way, Granny Su was very beautiful in her heart: I really didn't expect that I could help others. I'm not a waste!

Three days later, in the early morning, old Mrs. Su came again to the entrance of the vegetable market and saw from a distance that the eldest sister who had sold taro last time was shouting hard. Old Mrs. Su came to the eldest sister and was about to speak when someone shouted in front of her, "Chengguan is here, run..."

Just like last time, the hawkers heard the wind and quickly put up the stalls and loaded the car. The eldest sister who sold the taro was pouring the taro on the ground, and it was too late to load the car. When she looked up, she saw that the chengguan was in front and Mrs. Su was on the side. The eldest sister immediately pouted at Mrs. Su, left the taro and ran away.

In an instant, the road was in chaos. This time, the chengguan's car came really fast, and several chengguan got out of the car to intercept it at the same time, including the young man from the previous time. In the chaos, a hawker's battery tricycle went on a rampage, and although the young man hid quickly, he still fell heavily to the ground. Suddenly, Mrs. Su's heart "thumped".

The battery tricycle did not stop, and ran without a trace in the blink of an eye. The young man shook his head helplessly, got up and patted the mud on his body, limped to the front of Mrs. Su, and said, "Auntie, you... Why did you come out to set up a stall again? Didn't I tell you last time? The cars come and go here, it's too dangerous..."

Old Mrs. Su asked worriedly, "Child, are you... are you alright just now? Did it hurt?"

It could be seen that the young man was enduring the pain, he shook his head and said, "I just scratched my skin, it doesn't get in the way! Auntie, what do you want me to say, alas..."

Old Mrs. Su looked at the young man's knees. His pants were torn, and blood was faintly flowing out. She felt sad for a while.

Seeing that old Mrs. Su didn't say anything, the young man patiently advised, "Auntie, I know it's not easy for you! Well, I'll help you move the stall inside first. If you must sell taro, I'll help you find a formal stall. You can put it outside, it's not a problem if it's windy and rainy."

Looking at the young man's simple appearance, Mrs. Su's eyes slowly turned red, and she said shamefully, "I'm sorry, child! Actually, this... this is not my taro, I lied to you..."

After listening to what happened, the young man smiled: "Auntie, I guessed it long ago. You are dressed cleanly and look like a decent person at first glance. It is impossible to do such rough work. You are kind-hearted and do this, and I don't blame you. But Auntie, it is my duty to maintain good social order. Only by managing the road well can we ensure the safety of ordinary people. I hope you can understand..."

Old Mrs. Su blushed. She was a retired teacher, how could she not understand these principles? It was just that she was old and the changes in her life made her feel at a loss, so she did something stupid. The thrilling scene just now made Old Mrs. Su afraid again and again. If the young man really had an accident, she would never forgive herself for the rest of her life. The young man was right, the small merchants and hawkers have taken over the business, and such behavior must be banned, and kindness cannot be abused.

Old Mrs. Su looked at the pile of taro, drove the electric wheelchair, and left without looking back.