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Professor Severus Snape was a very important character through out the Harry Potter series. He played very important roles in Harry's life as well as in Hogwarts fortune. His works were admirable and beyond expression in words.

But, with all due respect to him, I could not understand why he portrayed himself as angry, ferocious, tough and mischievous to his students?

He always misbehaved with harry and the students and nobody seemed to liked him, except his Slytherin students.

Why did he pretend to be so?

Was it because he could not get Lily and that Harry was the son of James, the hater of Snape?

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3 Answers 3

up vote 10 down vote accepted

Snape as person was not very friendly or social, for that matter. His anger had a lot to do with his troubled childhood. He was a mudblood, had parental issues and was thoroughly bullied by James and Sirius at Hogwarts. This led to him develop a tough exterior.

However, Severus loved Lily deeply and had a fair share of affection for Harry too. But in Harry he saw James, a person who was used to being popular and treated as hero, and someone with utter disdain for rules.

In the end, Snape sacrifices his life for a cause and for Harry. The only reason he created that friction between himself and Harry was because he wanted Harry to be distant.

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There's also a point to be made that he sacrifices himself and puts himself at such risk not only for Harry, but to honor Lily's memory and her sacrifice for her son. –  TylerShads Jan 18 '13 at 13:12
I concur. The cause I was stating is the war against the Dark Lord and the point you stated. –  KeyBrd Basher Jan 21 '13 at 6:16
Snape had parental issues? Looks like I missed that! So what is the story? –  Mistu4u Jan 22 '13 at 8:11
@Mistu4u if it was in the movies, it was in an Occlumency lesson in Half-Blood Prince, wherein Harry (through Pensive or reversed-Legillimency) sees some of Snapes memories. –  pandorym Apr 17 '13 at 17:39
He was a half-blood. Hence the self-appointed nickname "Half-Blood Prince". –  colti Jul 4 '13 at 17:32

From Snape's point of view James Potter had everything easily. He was rich, popular, clever, charismatic and he had Lilly and he made sure he rubbed Snape's face in it. The girl who Snape deeply loved had loved the man whom he hated after suffering years of persecution by him,

Snape was torn. He 'loved' Harry in a way due to Lilly but every time he saw him he was reminded of his feelings for Lilly and Lilly's feelings for James. He also seemed to find Harry reminded him of his father whom was someone Snape hated. Hence he probably did not like Harry either.

Every second he spent dealing with Harry or with Harry on his mind was deeply emotionally wounding. It is impressive he remained as composed as he did.

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The situation with Snape and Lilly is slightly more complicated than this answer shows. He and Lilly were good friends up until the point where Snape's friendship with other Slytherins (future Death Eaters) results in a conversation where he calls Lilly a mudblood, offending her and driving her away. Up until that point, Lilly had defended him against James Potter and his friends. Afterward, she becomes part of their group, eventually dating and then marrying James. –  Donald.McLean Jul 3 '13 at 18:14
True, I did simplify things slightly in my answer but I still think it is valid. –  Stefan Jul 3 '13 at 21:12

" I could not understand why he portrayed himself as angry, ferocious, tough and mischievous to his students? "

  • First, among other things, because he was a high-IQ, low-social-IQ geek, who had to develop a tough bullying exterior to survive all his life.

    He clearly hated incompetents (thus total offense at Neville's entire existence). He disliked Gryffindors since he saw nothing but grief from them all his life.

    He doted on his in-group (Slytherins) - clearly illustrated when he forsake Lily and her love for being with his budding-DE Slytherin friends when in school.

  • Second, because that tough pro-Slytherin image was helpful to him as far as convincing Death Eaters that he was still on their sides. He was "in" with Lucius Malfoy and other Slytherin DE parents, and playing favorites helped him in that even if he wasn't naturally inclined to do so, which he was (see #1)

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