Everybody these days is subject to stress.  Whether you live in Manila, Tokyo, or Los Angeles, you live at a faster pace than at any time in history.  It's the traffic, the pressures and stress of life, along with family stress that can cause you to reach the boiling point, and when that happens, you explode.  You can refine the expression and say that you are just "letting off steam," but any way you look at it, anger has the best of you.  When your temper gets out of hand, you are embarrassed and feel disappointed with yourself because you know you have hurt others. Looking at it from a selfish viewpoint, you not only hurt others, but you hurt yourself and your future as well.