Let's Be Real

Have you ever noticed certain people in your life that know the right things to say and do when they are in the public eye but when it comes to real life they have no idea how to interact with people. Their friends and co-workers see them as one thing and then when they are around their family their true colors show! I know we all act somewhat different at work due to the fact that it is work and you can't truely relax and be yourself, but most of our friends see us as who we really are. But, do you have that person in your life that makes everyone think that they are the greatest thing going but when they get away from the outside world they become negative and condescending to everyone and everything around them? If you do how do you deal with it? How does it make you feel?