What have you experienced being humiliated by your friends in public?

I was particularly playful before high school, and my foundation was not particularly good. My academic performance ranks last in the class.

Once, our class did an experiment, and Xueba and I were assigned to a group. Xueba is my friend. As soon as I said I was with him, my friend stood up and said directly, teacher, he is so stupid. I don't want to be with him I need to change people. After listening, the teacher said, wait a moment, I'll change it for you later.

Being slapped in public, I thought he was a friend. As a result, my heart was particularly uncomfortable and my tears rolled over.