This is:
There was, or was not, from the fifth mouth of the quote.

One day in the universe we sat at a lecture on criminology. The teacher monotonously told something not very interesting about the tactics of interrogating witnesses. And suddenly in the middle of the lecture something breaks into the audience with a gun or a knife, pulls the student from the first part and pulls him out into the corridor. Everyone is in shock. And the teacher also calmly and monotonously says that we get the leaflets and describe the attacker. It is worth saying that of the 50 present at the lecture, no one even approached the truth in the description of the "attacker". Personally, I was sitting in the front rows, and my description was so far away that when the “attacker” entered the audience to compare descriptions, it was very embarrassing.

The book "Ordinary Wonders", the Soviet edition, explained things that people considered to be supernatural. The blue cover. There was still experience not at a lecture, but at a meeting of scientists: in the neighboring room training was conducted either by circus, or by theaters, the finish is interesting, read too.