Like what thenewgreen says, I think most of the 'evil' in this world isn't true, malicious evil; rather, it's from people being a little bit selfish or careless, failing to see beyond themselves, or being momentarily weak. So yeah, everyone is disappointing once you get to know them, but that's because, hey, pobody's nerfect; everyone fucks up, so if you know someone long and well enough, at some point they're bound to break your trust to some extent. It's the ones who are consistently unreliable that you want to weed out. They say trust is a loser's game; really, the people who think that have already lost. That trust is a loser's game is entirely the point: allowing someone to be in a position where they can hurt you is the necessary condition for any kind of closeness.