What stories make you feel sad?

Because of work, I often have to travel. I didn't buy a high-speed rail ticket when I went to Shanxi temporarily, but I bought a train ticket or a hard seat. Fortunately, I am chatting with people all the way, so I can spend some time walking and sitting. Sitting opposite me is an old man of about 70 years old, wearing a slightly worn linen cotton-padded jacket. The messy white hair looks haggard and adds to the vicissitudes of life. Travel fatigue happens from time to time. The old man closed his eyes and took a nap. He accidentally fell on the shoulder of a middle-aged woman who was doing it. The middle-aged woman gave a "crack" in her mouth, and then reversed it forcibly. The old man suddenly opened his mouth. The middle-aged woman rolled her eyes and didn't speak, but the old man consciously turned his body outward, keeping a gap of several centimeters from it, as if it was his nature to be disliked and disgusted by others, and he felt guilty about disturbing others ... stiff, embarrassed and cautious. In this old man, that moment was vividly reflected! I stood up and let him sit in my inner seat near the window and let him squint at the window for a while. He was so grateful that he didn't know what to say. I'm just saying that I like being outside, and it's convenient to come and go. I will think of it from time to time, and I will be sad for a while. People are old, inconvenient to move, forced by the pressure of life, and are disliked everywhere. This is probably the saddest thing!