Board Thread:COMPLETE BULLSHIT Forum/@comment-99.109.213.34-20140318052602/@comment-13965604-20140320134314

^ That doesn't seem terribly plausible. Even if Scott were that horrible at detecting other werewolves, the twins were near him in 'Echo House' and I wouldn't expect them to be terrible at recognizing other werewolves. I don't recall if it's canon or not, but I've always imagined it was something you could smell.