I'm with mouse, trust begins inside ourselves. I have found that if you know and trust yourself then you're better able to know how/when to trust another. But the whole thing is vulnerability and taking chances; you can never know something in advance, no matter how well prepared you are, but that's where knowing yourself comes in handy because then you're "there" when you need you :-) again like mouse is saying, you know what's what and have less trouble not caring a rats arse what anyone else thinks or does that's negative toward you.