The whole key in dealing with anger is to understand what the signal is all about. Although the initial feeling of anger is automatic, what we do in response to that feeling is a matter of choice. Too often we go into a conditioned response of either avoidance or acting out without understanding what our self is trying to tell us about its experience of others and what is happening around us. Retention of anger, or resentments, are just as counterproductive as blind acting-out. The use of alcohol can be a way to nurse the grudge, to provide comfort to the discomfort that the repressed anger has caused.
Unresolved anger is also a fundamental way to isolate one's self.
And alcohol is the great way to feel good about one's own isolation. In fact as alcoholism progresses the drinker usually tends to drink more, and more in isolation. We work in a profession that often runs on anger or resentment. We do so in an environment of wonderful technology that has created the expectation that certain things will happen and that they will happen quickly. Technology has lowered our frustration levels, and caused us to demand instant gratification.