Hi, here i come back to share this anecdote:

I was in high school, exactly in the tenth grade. I was the only female student in that classroom. It was the chemistry class and the teacher had not yet arrived. She was an excellent teacher in her subject, however she was very angry. There was a boy named Polania, he was quite funny and he liked to make everyone laugh, suddenly this boy took my bag, hung it on his shoulder and began to parade around the class room, imitating the teacher. We were all dead laughing looking at the woman's gestures and the fake voice. Polania was now facing from the board and pretending to explain an exercise in chemistry. Suddenly the teacher entered the classroom, we were all silent, but Polania did not notice this and continued her show, while the teacher sat in the student's chair and waited for the poor boy to turn around and discover her.
Polania turned her gaze to us and in a fake and half smiling voice told us: "students all take out a sheet that I am going to make an evaluation." Immediately his face broke down when he discovered the teacher sitting there observing him. His face seemed like a traffic light changing colors. With such bad luck, that the teacher of punishment, ordered him to develop the class, for which he put a complicated exercise.

The poor boy was completely blocked, he did not know what to do, while everyone else struggled to contain the laughter. I could not take notes because my bag continued on Polania's shoulder.

Greetings and happy day for everyone!