Advice to Prof. Severus Snape

For Harry Potter fan, whether they think Prof. Snape is good or not can be the apple of discord. Indeed, he remains on Harry's side behind the curtain throughout the story and dies at the end. However, Prof. Snape is not a nice teacher for him and he treats Harry unjustly because Harry resembles his father, James Potter. In addition, he is partial to Slytherin so students at Hogwarts who are not there usually hate him; they even feel scared. Prof. Snape's fan says he is brave and it is good that he devotes his life wholeheartedly to Lily, Harry's mother. However, I think he is not a good teacher even he is good as a human because he always gets emotional over nothing; a teacher must not evaluate his or her students by private feelings. So I would say to him, "don't think about other things in classes, think about your students now." and "devote yourself to now and your students, not your lover, at school." It is one of the basic knowledge as a teacher. Prof. Snape would be fired in real life; it is too unrealistic to say that he is nice.