What jokes make you feel sad after laughing?

I saw such a joke in the summer vacation after the college entrance examination:

After the college entrance examination, I wanted to experience the hard life, so I went to the construction site to move bricks. I was a little thirsty at that time, so I sat on the side of the road and drank water. Then I came over to an aunt who was educating him and her children to study hard. Her child saw me and said, mom, look at him. I will give him my water. Then her mother said to the child, look, if you don't study hard, just move bricks here like him. I feel very angry. I silently took out Tsinghua University's admission notice from my pocket and said to myself, what's wrong with me?

It was really funny after reading it, but I smiled and took out my notice of XXX College, and suddenly I couldn't laugh. I feel very sad about how I got this test.

There is such a joke:

My family was poor when I was a child. After graduation, I borrowed money to go out and work hard. After years of hard work, I finally got into debt from nothing.

Although the joke was short, it was really funny and the ending was unexpected. Then I thought about myself. I also come from a rural family. What do I want to do after graduation? Now is an era of fierce competition. My education is not higher than others, and I am not from a famous university. How to compete with others when applying? How did the boss choose me, or did he work hard and start his own business? What skills and connections do I have Thinking about my future, suddenly the joke turned into chicken soup. Let me laugh first, and then I feel sad when I smile.