What life scenes do you regret not being filmed?

In my heart, I think what I regret most is that I didn't take a photo with my grandfather. He loved me very much, especially when I was in high school, which was more than ten miles away from our hometown. I remember one day, my classmate called me and said, "Jiang Youyun, your grandfather came to see you." When I came out of the classroom, I saw my grandfather looking at me with a big sweat. It's still a little difficult to talk. I remember telling me if I have any difficulties at school. I shook my head. Grandpa didn't speak again. He took out two yuan from his underwear pocket with a dry twig-like hand and handed it to me. When his hand handed me the money, I saw his hand shaking all the time. Grandpa was in poor health and walked from home to school alone. I'm really tired after walking for hours. I didn't talk to grandpa much. After a while, grandpa left. I looked at his rickety back and felt very uncomfortable. Later, when I grew up, I didn't record my grandfather's birthday once. I really regret it.