Today is Teacher's Day. You are a 10th-grade student replacing a history lesson from John Davey Harris.

John was sitting in the staff room across from the History room. 9 In the class, one of which you got, was with a very bad reputation. And this reputation was confirmed: the lesson was thwarted. You let out a small sigh as you sent your assistant to John. A group of boys gathered in the back of the classroom, throwing rude and ignorant jokes in all directions. The girls, hoping that they would not be scolded as much as the boys, sat quietly in their phones. — What's going on here? — Davey Harris came into the office. He glanced around the classroom with displeasure.