Angry Art….?

Anger is an emotion we humans have all experienced whether or not we want to admit it. Some of us are more inclined to it than others, striking immediately when provoked. Some of us keep it well hidden until we explode….often with dire consequences. Some deny the emotion and suffer with related issues like depression and low self esteem. What role does ART play when it comes to the idea of anger?  Personal catharsis….? Cultural statement….? Provocation….? Pacification….? All of theses….? None….?