Can you think of any traits in Pettigrew that are worth applauding aside from his loyalty to the dark side? Peter Pettigrew's real mess up is his dedication to Voldemort, who obviously fails to win over the world with his evil tricks. But even Peter's loyalty to Voldemort is not something to be praised. Scared of everything, the snuffling, unattractive man shows perfectly what it means to be a true coward. His loyalty is to himself, with all decisions made based on what will benefit him the most, from betraying his school friends when he decided his best course lay with old Voldy, to appealing to Harry's better nature when the right decision would probably have been to kill him. He gets what he deserves though, when his own silver hand chokes him to death. He should have stayed a rat and run away when he had the chance.
I love Stephen King and music festivals; I eat my toast upside down; I daydream about getting married probably a bit too much; and I wish every day for a pet sausage dog puppy (who never materialises – sob).