Harry Potter and the Order of the Phoenix
Lupin had pulled out a book and was reading. Sirius stared around at the students milling over the grass, looking rather haughty and bored, but very handsomely so. James was still playing with the Snitch, letting it zoom further and further away, almost escaping but almost grabbed at the last second. Wormtail was watching him with his mouth open. Every time James made a particularly difficult catch, Wormtail gasped and applauded. After five minutes of this, Harry wondered why James didn't tell Wormtail to get a grip on himself, but James seemed to be enjoying the attention. (28.207)
"LEAVE HIM ALONE!" Lily shouted. She had her own wand out now. James and Sirius eyed it warily.
"Ah, Evans, don't make me hex you," said James earnestly.
"Take the curse off him, then!"
James sighed deeply, then turned to Snape and muttered the counter-currse.
"There you go," he said, as Snape struggled to his feet. "You're lucky Evans was here, Snivellus —"
"I don't need help from filthy little Mudbloods like her!"
Lily blinked. (28.251-257)
[Harry] felt as though the memory of it was eating him from inside. He had been so sure his parents were wonderful people that he had never had the slightest difficulty in disbelieving the aspersions Snape cast on his father's character. Hadn't people like Hagrid and Sirius told Harry how wonderful his father had been? (Yeah, well, look what Sirius was like himself, said a nagging voice inside Harry's head ... he was as bad, wasn't he?) (29.27)