I have been inspired some great quotes from Zeus below. I have adapted them as they work better for my mind this way:
NEGATIVITY occurs when adversity makes it difficult to cope. Negativity continues until a coping strategy is instigated (by adapting). Prolonged negativity can lead to frustration, resentment, rage, rebellion, hate etc.
VENTING occurs due to negativity. However, by adapting to the negativity (changing, accepting, detaching etc) the stages that follow prolonged negativity need not develop. Peace can be restored.