Emily

“You are not going to pass off your many ineptitudes on the students of Hogwarts. I shall not permit it.”
“Excuse me?”
Amycus moved forward until he was offensively close to Professor McGonagall, his face within inches of hers. She refused to back away, but looked down at him as if he were something disgusting she had found stuck to a lavatory seat.
“It’s not a case of what you’ll permit, Minerva McGonagall. Your time’s over. It’s us what’s in charge here now, and you’ll back me up or you’ll pay the price.”
And he spat in her face.
Harry pulled the Cloak off himself, raised his wand, and said, “You shouldn’t have done that.”
As Amycus spun around, Harry shouted, “Crucio!”
The Death Eater was lifted off his feet. He writhed through the air like a drowning man, thrashing and howling in pain, and then, with a crunch and a shattering of glass, he smashed into the front of a bookcase and crumpled, insensible, to the floor.
“I see what Bellatrix meant,” said Harry, the blood thundering through his brain, “you need to really mean it.”
“Potter!” whispered Professor McGonagall, clutching her heart. “Potter--you’re here! What--? How--?” She struggled to pull herself together. “Potter, that was foolish!”
“He spat at you,” said Harry.
“Potter, I--that was very--very gallant of you--but don’t you realize--?”
“Yeah, I do,” Harry assured her. Somehow her panic steadied him. “Professor McGonagall, Voldemort’s on the way.”
“Oh, are we allowed to say the name now?” asked Luna with an air of interest, pulling off the Invisibility Cloak. This appearance of a second outlaw seemed to overwhelm Professor McGonagall, who staggered backward and fell into a nearby chair, clutching at the neck of her old tartan dressing gown.
“I don’t think it makes any difference what we call him,” Harry told Luna. “He already knows where I am.”
― J.K. Rowling, Harry Potter and the Deathly Hallows