Harry, Ron, and Hermione were all sitting in the library when it happened. Hermione was reading a book with great concentration, Harry was deep in thought and Ron was- well, being Ron. They were all so lost in their activities that they didn't notice Professor McGonagall walk up to them. She had a grave look on her face.

"Hello students," she said.

"Hey, Professor," said Harry.

"What's up?" asked Hermione.

"I'm afraid I have some very awful news for you all," she said.

"What's wrong?" Hermione asked.

Professor McGonagall looked directly at Ron and burst into tears.

Ron looked horrified. "What's wrong? Is everything alright, Professor?" he asked.

Professor McGonagall stopped crying and said, "No. Mr. Weasley I don't know how to tell you this but- you're a unicorn!"

Harry went into a fit of laughter. Professor McGonagall looked at him sharply and said, "Something funny, Potter?"

"No, Professor-" Harry began but Ron cut him off.

"I knew it," he said. "I knew it all along."

Harry and Hermione gave each other a WTF look.

"Ron think about this logically," said Hermione.

"NO!" shouted Ron. And he got on all fours and ran away.

Harry looked at Professor McGonagall and said, "Why'd you tell Ron he's a unicorn, Professor?"

"Because he has a tiny horn growing on his forehead," she replied.

"That was a pimple!" exclaimed Hermione.

"Oh," said Professor McGonagall.

What else could she say?