Who told a joke about farting in class?

1. In class, the teacher farted and the students couldn't help laughing.

Teacher: Students, the teacher will tell you today why people fart and how fart is formed.

Student: Teacher, you are a math teacher. You should talk about math in this class.

I am a sophomore. One day, I suddenly felt abdominal pain and farting in the self-study class, but the classroom was very quiet and I didn't dare to play it loudly. I had to play bit by bit, and finally there was a sound.

At this time, the second-rate students in the back row said, "It's quite fart, which makes you broken."