"Hang on..." Harry muttered to Ron. "There's an empty chair at the staff table... Where's Snape?"
Professor Snape was Harry's least favorite teacher. Harry also happened to be Snape's least favorite student. Cruel, sarcastic, and disliked by everybody except the students from his own house (Slytherin), Snpe taught Potions.
"Maybe he's ill!" said Ron hopefully.
"Maybe he's left," said Harry, "because he missed out on the Defense Against the Dark Arts job again!"
"Or he might have been sacked!" said Ron enthusiastically. "I mean, everyone hates him-"
"Or maybe, " said a very cold voice right behind them, "he's waiting to hear why you two didn't arrive on the school train."
As you should know, this is from the Chamber of Secrets when they arrive at the school in the Ford Anglia. I've memorized this by heart, because it's just so awesome. I can just imagine the looks on Harry's and Ron's faces when they heard Snape(which sucks because they didn't put this in the movie). Although, I always hate it whenever it says "Snape was Harry's least favorite teacher" in the books, bcause it says it a lot. I know it has to be emphasized that Harry hates him until the very end for literary reasons, but sometimes I just want to tell Harry why he shouldn't hate Snape.
