Quoting from Quora- http://qr.ae/1BDJRW : (when I student-taught, one of the pupils was a *real* pisser, and after four weeks of hazing, the vice principal started conspiring to find reasons to remove him from the class. I was a shocked but willing participant. You’d be stunned how one or two students’ presence or absence can change the behavior of the entire class.) I can't agree, nor am I willing to agree with that teacher. The fact that he, as a teacher failed to teach a student not only theory but actual stuff: morals and good examples gives me the impression that he didn't understand what being a teeneger means, nor was well versed with the teaching methods. You don't have to 'set up' a student. Why? Because there are other ways to manage your classroom, students and their problems. He could talk with him, apply the rules, call his parents and so on. His way of doing things is a big NO from my part. He failed as a teacher. He abandoned his student. Now, I know that that poster didn't describe the whole situation but, in any case, that's not the right thing to do and there's no justification. A teacher is put there to teach all students, to be a model and.. Other opinions?