I believe it is possible that the fact shown in the video happens here in Brazil. I don't agree with the attitude both of them. I've never experienced it because I prefer to keep a cordial relationship with the students and I think being a teacher and want to reach out to students doesn't mean to compare them or use the same "weapons" that they usually use. Every teacher must respect the student and be respected as a professional, without losing its principles and its role as an educator or "councelor". Always keep this approach, this is the question.