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?
I know what you mean. The same thing happened with me. I do not understand these people. I will say honestly I sometimes ashamed of them. Even if the subject is boring a person should be respected as a person, as a teacher. I think it's not normal...
Well, there always will be slackers who don't want to study at all. It's normal. You don't have to care about them.
I agree with Darina, it is not normal… Вecause they do not show respect for the teacher..
if to say openly,at the beginnig i didn`t understand what about exactly you asked «it`s normal») it`s normal that you hate students like that? or it`s normal that they act as lead?) I felt ashamed when i was reading your post, because sometimes I also left second lesson without asking the teacher..( ahah. .yees… it`s not right, but I have reasons! and i respect my teacher!) so, if to say about that students, it`s really bad… they`re not pupils at school, they`re adult and they must understand that teacher tried for them, they must respect her/him. In our lives everything comes back like a boomerang and I think that in lessons of that students who was noisy, students will be like them..
Еhese students don`t have education. A normal person should sit as the situation in the classroom, especially if the comment was made. And I feel ashamed because of these unscrupulous people.
of course, it's not good… At first it means that they aren't respect yourself, unfortunately,teacher too..
I read this post and commentaries and understood that I became a little smarter and also realized that YOU HATED US
Because in the first year I did the same. But no, don't think that I also make a noise. I sat very still, listening to music.
but in general I think that it's normal because it's STUDENT LIFE! It's normal to go to one lesson and to go away from another lesson.Such is the life of the student 