It leaves much to be desired((((
I'm going tell about one situation which happened at institute. It was lecture and a teacher explained a lesson, but any students didn't listen the teacher and they were very noisy. The teacher made an observation. Then bell rang, and the teacher went out. And the students who made noisy went from second lesson.But they didn't ask the teacher's permission. I really hate a person like this 
Do you think it's normal?
