“What exactly is the function of a rubber duck?”

“What are we doing here? Has something gone wrong?”“Oh no, Ron,” came Fred’s voice, very sarcastically. “No, this is exactly where we wanted to end up.”

“Harry constantly repeated Dumbledore's final words to himself. "I will only truly have left this school when none here are loyal to me. ... Help will always be given at Hogwarts to those who ask for it. "But what good were these words? Who exactly were they supposed to ask for help, when everyone was just as confused and scared as they were?”

“Room of Requirement, of course! Surpassed itself, hasn't it? the Carrows were chasing me, and I knew I had just one chance for a hideout: I managed to get through the door and this is what I found! Well, it wasn't exactly like this when I arrived, it was a load smaller, there was only one hammock and just Gryffindor hangings. But it's expanded as more and more of the D.A. have arrived.”

“The poor things keep calling in those – those pumbles, I think they're called – you know, the ones who mend pipes and things – ""Plumbers?"" – exactly, yes, but of course they're flummoxed.”

“Uncle Vernon rounded on Harry. “And you?”“I’ll be in my bedroom, making no noise and pretending I’m not there,” said Harry tonelessly.“Exactly,” said Uncle Vernon nastily. At eight-fifteen—”“I’ll announce dinner,” said Aunt Petunia.“And, Dudley, you’ll say —”“May I take you through to the dining room, Mrs. Mason?” said Dudley.“And you?” said Uncle Vernon viciously to Harry.“I’ll be in my room, making no noise and pretending I’m not there,” said Harry dully.“Precisely. Now, we should aim to get in a few good compliments at dinner.“How about — ‘We had to write an essay about our hero at school, Mr. Mason, and I wrote about you.’”This was too much for both Aunt Petunia and Harry. Aunt Petunia burst into tears while Harry ducked under the table so they wouldn’t see him laughing.“And you, boy?”Harry fought to keep his face straight as he emerged. “I’ll be in my room, making no noise and pretending I’m not there,” he said.”

“He sounds exactly like Moody," said Harry quietly, tucking the letter away again inside his robes. "'Constant vigilance!' You'd think I walk around with my eyes shut, banging off the walls....”