Remember the last time you felt miserably bad about judging someone wrong. I never used to believe when someone tells "I can say about a person after I meet him the first time". I still never believe it. 'First impression is the best impression'. Maybe that's true for some cases, but as far as my personal experience goes, people are not always what you think they are when you first meet them.

A first meet does not always have the time for you to get to know the other one right. Or putting it in the other way, people are more formal in their first meet. They aren't in their true themselves. So the concept of 'TRUST' itself does not come into the picture when you really do not know a person. But then it is "Trust" itself is a rigid concept. When someone trusts you, you either keep up to it or break their trust. This means more than 90% of the time, people you trust do not keep up to your expectations. Not because they cannot but because there is the certain dark side that I call 'The Devil' that causes it. In short, whoever you trust, know that everyone has a dark side that even they can't trust upon.