Nikol Hatter
Ноуп, вы путаете. Приведенный пример - это реакция на происходящее. Никода не замечали, как машина, бывает, несется на человека, а он просто стоит и орет?..
Петтигрю перешел на сторону врага, да. И это вид приспособленчества - он посчтиал, что ему так будет проще/удобнее/выгоднее.

МТА
А вот ХЗ.
Pettigrew burst into tears. It was horrible to watch, like an oversized, balding baby, cowering on the floor.
“Sirius, Sirius, what could I have done? The Dark Lord . . . you have no idea . . . he has weapons you can’t imagine. . . . I was scared, Sirius, I was never brave like you and Remus and James. I never meant it to happen. . . . He-Who-Must-Not-Be-Named forced me —”
“DON’T LIE!” bellowed Black. “YOU’D BEEN PASSING INFORMATION TO HIM FOR A YEAR BEFORE LILY AND JAMES DIED! YOU WERE HIS SPY!”
“He — he was taking over everywhere!” gasped Pettigrew.
“Wh — what was there to be gained by refusing him?”
“What was there to be gained by fighting the most evil wizard who has ever existed?” said Black, with a terribly 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!”
На самом деле в любом случае встает вопрос, знал ли об этом Дамблдор.