What's the joke about helping grandma cross the street?

At noon on a Sunday, I finished my applied mathematics class and took a taxi home with my mother. When I was talking about an interesting math problem, the car suddenly accelerated, followed by a sudden brake, and finally I heard a loud bang, and the car hit a broken down car heavily. Before I knew it, my head had hit the protective net in front of me, and I just felt like a hornet's nest buzzing.

My mother quickly pulled me out of the car. I feel water running down my face. I touched it with my hand and it was covered with blood. My nose is bleeding and my eyebrows are burning. My mother is already stunned. At this moment, a taxi stopped beside us, and the driver leaned out of the window and said eagerly, "Hurry! Get on the bus and I'll take you to the hospital. " Say that finish, I got off and opened the door. My mother covered my head and got on the bus. Uncle closed the door, reminded us to sit still and the car flew away. In a short time, I arrived at Beijing Sixth Hospital, and my uncle hurried to the registration office. My mother and I followed him closely. I heard that there was no ophthalmologist on duty, and the driver's uncle stamped his foot and said, "Shit!" "Go back and tell my mom, let's go to the Union Medical College Hospital, where there is ophthalmology. "

On the way to Union Medical College Hospital, we were caught in a traffic jam. My uncle keeps looking back at me. My head was still bleeding. He was sweating with anxiety and honked the car horn. When I came to Union Medical College Hospital, my mother ran to register in three steps. My uncle took me to the ophthalmology department and comforted me while walking. After about fifteen minutes of hemostasis and anesthesia, sewing began. Although I was dizzy, I still heard the conversation between my uncle and my mother. "The child is so competitive that he didn't cry after so much blood. Stitching must hurt. I wonder if the child can stand it? " Hearing my uncle's words, I felt warm in my heart, thinking that this uncle is really good, just like relatives.

Coming out of the operating room, my uncle came face to face, touched my head with his big hand and said kindly, "Does the child hurt?" You are this! "Said the thumbs-up. At this time, I studied my uncle carefully. My uncle has big eyes, a pair of thick eyebrows above his eyes, three shallow wrinkles under his unkempt hair, his face blackened by the sun, and a pair of big hands. You can tell at a glance that he works hard. He smiled at me kindly.

I sat in the chair at the door of the operating room and heard my mother say to my uncle, "You have worked hard. I really don't know how to thank you. Can you leave me your phone number? This is your fare. " "Don't! This little thing is nothing, you'd better use this money to buy something for your child! It is good that the child is fine. " Say that finish, uncle smiled at me, turned and walked to the hospital gate. Mother caught up with him, but uncle stepped up and left. Looking at the back of his departure, his mother said deeply, "He is really a person who does good deeds without leaving a name!" " "