It would be a lie to say that Hermione wasn't uncomfortable when Fenrir mentioned his victims. She knew that there was generally more to the story than was reported when it came to werewolf attacks, but she couldn't deny that sometimes the brutality of the attacks was intentional and not done as a result of natural instincts. Never had she been brave enough to ask Fenrir for the details of his attack on Remus Lupin when he was an innocent child. She didn't think she could bear to listen to them. Neither of them had clean hands. It was best that they not dwell on the past.