“I must admit, Peter, I have difficulty in understanding why an innocent man would want to spend twelve years as a rat.”

“What was there to be gained by fighting the most evil wizard who has ever existed?" said Black, with a terrible fury in his face. "Only innocent lives, Peter!""You don't understand!" whined Pettigrew. "He would have killed me, Sirius!""THEN YOU SHOULD HAVE DIED!" roared Black. "DIED RATHER THAN BETRAY YOUR FRIENDS, AS WE WOULD HAVE DONE FOR YOU!”

“If you made a better rat than a human, it’s not much to boast about, Peter.”

“Why would I go looking for someone I know wants to kill me?”

“Well, hello, Peter,” said Lupin pleasantly, as though rats frequently erupted into old school friends around him. “Long time, no see.”

“But the idea of the Dark Lord in possesion of the Deathstick is, I must admit, formidable.”

“He must have known I'd want to leave you.""No, he must have known you would always want to come back.”