Harry Potter and the Half-Blood Prince

people find it far easier to forgive others for being wrong than being right

“And now, Harry, let us step out into the night and pursue that flighty temptress, adventure.”

“They’re playing Harper instead; he’s in my year and he’s an idiot.”

But Black’s by-the-by now. The point is

“You could say sorry,” suggested Harry bluntly.

“What, and get attacked by another flock of canaries?” muttered Ron.

“What did you have to imitate her for?”

“She laughed at my mustache!”

“So did I, it was the stupidest thing I’ve ever seen.”

“I want a word with you, Harry.” She took a deep breath. “You shouldn’t have done it. You heard Slughorn, it’s illegal.”

“What are you going to do, turn us in?” demanded Ron.

“What are you two talking about?” asked Harry, turning away to hang up his robes so that neither of them would see him grinning.

“You know perfectly well what we’re talking about!” said Hermione shrilly. “You spiked Ron’s juice with lucky potion at breakfast! Felix Felicis!”

“No, I didn’t,” said Harry, turning back to face them both.

Harry awoke next morning feeling slightly dazed and confused by a series of dreams in which Ron had chased him with a Beater’s bat,

She’s Ron’s sister, Harry told himself firmly. Ron’s sister. She’s out-of-bounds. He would not risk his friendship with Ron for anything.

Harry lay awake for a long time, looking up at the canopy of his four-poster and trying to convince himself that his feelings for Ginny were entirely elder-brotherly. They had lived, had they not, like brother and sister all summer, playing Quidditch, teasing Ron, and having a laugh about Bill and Phlegm? He had known Ginny for years now. . . . It was natural that he should feel protective . . . natural that he should want to look out for her . . . want to rip Dean limb from limb for kissing her . . . No . . . he would have to control that particular brotherly feeling. . . .

Yeah, it is!” said Ron, just as angrily. “D’you think I want people saying my sister’s a —”

“A what?” shouted Ginny, drawing her wand. “A what, exactly?”

“He doesn’t mean anything, Ginny —” said Harry automatically, though the monster was roaring its approval of Ron’s words.