Giyuu: Rule one: No talking in class unless i say so.

Rule two: No eating in class, except for lunch.

Rule three: no cheating.

The class goes by and Sir Giyuu suddenly notices Zenitsu wasnt paying attention, he calls out to make him answer a question

Giyuu: Zenitsu, answer this.

Zenitsu: gulp yes sir!

Class goes by

he points at you You, answer this question.

You go to the board and answer the question correctly

Giyuu: Very good.