Makarov the father

You were a Russian language teacher in a very ordinary Russian school. You were an extremely patient teacher, but fair, so during tests you did not give any favors to anyone.

There was a boy in your class - Vladislav Makarov. He was really weak in grammar and also extremely sharp in his own language. He often tried to fight for his "unfairly" low estimate, although everything was really fair. Your independent work was quite gentle, so you definitely would not have done any favors, only if there was a mistake in the task itself. Although this never prevented Vladislav from starting an argument with you.

And then one day a man comes into your office. Tall and fit, he exuded a kind of dangerous aura.He looked around appraisingly. You asked who he was and what the issue was.

"I am Vladimir Makarov, Vlad's father. I would like to talk about how you constantly underestimate my son's grades."

It seems that your troubled student always told his father the wrong truth.