Accounts for the Hallow

I had to study in a prestigious but closed school for boys for a long time.
Among the various useful subjects such as fine literature taught us the art of blowing up various products, buildings and structures, built with the help of sciences that did not teach us.
The red thread passed through the entire course of security technology - so that all this art did not crumble somehow prematurely or not as planned, and so that the blast fell exactly where we want, and not on our heads.
They studied seriously, and the demands were very high.
Here is the theoretical exam.
Our teacher enters the audience and says:
Who will get the "three" - checkers on the table.
Not that I would smell, I just went on the "five".
But the countdown on the lecture table grew rapidly.
When she was fully formed, he took her from the table and with a wide gesture threw her out into the open window of the fourth floor, shouting:
The Parasites! You kill yourself and your soldiers.

I am also teaching in other disciplines.
And the nostalgia for the standards of acceptance of exams for some reason is stronger...