Don't get yourself in certain circumstances or instances, because it's not a good feeling to be sitting in that chair where you've got 12 people that are in control of your life. You have an opportunity to be in control of your life for yourself by the decisions that you make.
I would not unduly praise the virtue of restraint. It is often merely temperamental. But it is not always a sign of coldness. It may be pride. There can be nothing more humiliating than to see the shaft of one's emotion miss the mark of either laughter or tears. Nothing more humiliating! And this for the reason that should the mark be missed, should the open display of emotion fail to move, then it must perish unavoidably in disgust or contempt.