When you shout at a computer, several things happen that makes people (including yourself) feel badly: For instance, people that are nearby can get scared and become wary. In addition, screaming can go through several walls or reach anyone passing by outside and they may not assume that you are shouting at a machine which can be very threatening and for certain people. I don't think I need to go on, but I'll add this as it seems it may be of help; your frustration is carried with you if you don't let it out, but a good way to make sure that you carry it around your neck much longer, is to scream and act out on what's nearby. Impulse control is a form of processing even if it feels great to give in to anger. Was definitely not obvious to me at least