In the first movie the the scene of the troll you can see that snape has a bleeding leg, why? Snape was bitten by Fluffy the three headed dog. When Troll was released, he went to make sure that no one was after the stone as everyone was distracted by the troll.
Snape's leg was cut during a duel between him and Harry Potter at Malfoy Manor. It happened when Malfoy was attempting to steal a prophecy from Dumbledore and Harry was trying to prevent it.
The night Quirrell let the troll in is when Snape got bit because he was trying to stop him from getting past the dog.
Harry sees that Snape's leg is bloody and mangled. This leads him to suspect that Snape is trying to get past Fluffy to steal the mysterious package.
The truth came out when Professor Quirrell admitted to Harry that he'd jinxed the broom and claimed he'd have gotten away with it too if it hadn't been for those meddling counter-curses. In other words, Snape tried to save Harry's life, and the only thanks he got was being set on fire.
While in school together, Sirius once tricked Snape into almost entering the Shrieking Shack while Lupin was there, transformed into a werewolf. James realised the danger and stopped Snape, saving his life; this is the incident Dumbledore referred to at the end of the first book.
Sectumsempra is a curse invented by Professor Severus Snape, during his childhood, when he was known as "The Half-Blood Prince". He created it with the intention of using it against his enemies, and it soon became one of his specialties.
In order to protect Harry, Snape was forced to live two lives, one as a Death Eater and the other as a member of the Order of the Phoenix. These two separate lives were the two opposing sides of Snape's personality, and his sacrifice to abandon his Dark Lord proved his dedication and care for Harry.
Snape's secrecy is revealed to have been a mask and he has sacrificed being well-liked to be able to save Harry, all because of his love for Harry's dead mother: the only friend Snape ever had.
Blood spurts from Draco's face and chest, and Myrtle beings screaming. Snape bursts into the room and heals Draco's wounds almost immediately.
Severus Snape is one of the most divisive characters in the entire "Harry Potter" series. He was a double agent, so many character details were kept a secret. His mother was a witch and his father was a Muggle, leading to the moniker "The Half-Blood Prince."
He has a deep rooted phobia of shampoo. People do have different priorities, even if he ever washed it he probably didn't use enough shampoo or other products to get all the grease away.
Harry's scar had hurt during Arrival Feast because of Quirrell's connection to Voldemort; Snape was then talking to Quirrell, allowing Voldemort, from the back of Quirrell's head, to sense Harry's presence.
Unlike the students, who have one class each day, Snape has to teach multiple classes and thus is exposed to more, and more varied, effusions. His greasy hair could be his acknowledgement that it is going to get messed up anyway. It could be the result of the side effects of the fumes it is constantly exposed to.
So in summary, Snape is so angry with Harry in particular because he is petty in a sense; punishing the son for the sins of a father he never knew. He's ferocious with the other houses and is only nice to his Slytherins because he needs to preserve his role as a spy.
In Potter, Snape's Patronus, a soul-guarding magic spell, takes the form of a deer—more specifically, a doe—as a symbol of his love for Lily, because hers was a doe as well.
The acclaimed author explained that Harry paid tribute to Snape because of “forgiveness and gratitude.” Though Snape bullied Harry, he also saved him. “Harry hoped in his heart that he too would be forgiven.
He doesn't trust Snape as Dumbledore does, but he believes that he can detect any disloyalty. Moreover, Voldemort regards Snape as highly intelligent and therefore ' as a true Slytherin ' a person whose top priority is to take care of himself.
Snape tells Harry that he, Snape, is the Half-Blood Prince, and that Harry should not use his own spells on him, as Harry's father did. Harry dares Snape to kill him and calls him a coward once more.
Harry Potter named his son after the character Professor Severus Snape in tribute to him dying for “for Harry out of love for Lily [Potter],”JK Rowling revealed on Friday.
Snape's love for Lily fed his hatred for James, and meant he would stop at nothing ' even arranging the murder of her child ' to possess Lily. Lily's life would be spared in return for Snape giving information of the prophesy to Lord Voldemort.
As Rowling explained in a series of tweets, Snape loved Harry's mother, Lily, and his unrequited affection drove him to resent Harry's father, James — and by extension, Harry himself.
In order to conjure the avada kedavra curse, you have to want to kill your victim. We all know that Voldemort could easily kill a child without an ounce of remorse... but not Snape. Snape didn't want to kill Dumbledore, and this was why the spell was blue instead of the usual green.
“A creature I wouldn't want to kiss . . . a spider!” Harry figures out the riddle, and realizes that a spider is about to attack. But what he doesn't realize is what I now believe: that the spider in the maze is Professor Snape, in his Animagus form. It is Spider/Snape who bears down on Cedric and Harry.