Anger is an emotion that we have all felt and expressed at some point of our lives. It not limited to children or any other specific group of people. It belongs to our every day life on any level of human functioning.
We deal with it in very unique ways. In the traffic you may find its example in drivers that scream and beep at anyone who is driving too slow, too fast, or simply in a way that is intolerable to them.
Anger can affect what we say or do before we can even recognize the feeling. If you are one of those people who feel angry all the time, the chances are that you have become so used to feeling the anger, that you may not notice it any more. And when not thinking about it, your behavior gets to be influenced by this feeling.
When looking for signs of anger in others, think of the different ways in which anger can be displayed.
Do you know a person who feels angry most of the time? If their anger seems to be ever-persisting, such person became so used to the feeling of anger so well that she may not even notice it any more. And what she doesn't notice, she cannot recognize as the key factor that is influencing what she says long before the actual anger escalates.