Describing the emotions or past experience so detailly, minutely and beautifully that will attract some pair of ear.... This is an art of an enterpreneur.
Well what I think is before you get angry you take all the hatred around you, you accumulate it and burst out through your actions. You might say that I was angry spontaneously but that's not how it's works. In such case there is always something in your head before you indulge.