I guess everyone wears a different mask when they are facing different people and in different environments. Where will you be able to find someone that will truly show his/her true face and greet everyone with a genuine heart? Even in small children, it is also evident. They could be an angel in school, recieving praises from their teachers. On the other hand, at home they will be a devil, not listening to their parents and so on.

To me, i think those people that are really scary are those that wears a smile on their faces but when there's no more relation between anymore, they change their face in a split of a second. (pls excuse me, just a thought that came to my mind just now when i recieve an sms from my ex-P4 student=(... feeling really depressed and sad by that incident... i just need time to get over it... )