Bitterness is the internalization and personalization of a real or perceived injustice with a persistent and intense rumination about the injustice or the injustice agent, resulting in more damage caused by the bitterness than could ever be caused by the injustice.

Tannerite is a combination of two safe and stable compounds, an oxidizer consisting of ammonium nitrate and ammonium perchlorate and a catalyst comprised of aluminum powder. The oxidizer and the catalyst are very safe if kept separate, but when combined and subjected to the impact of a high-velocity impact, they explode. You get the same result if you mix an offense with bitterness. The offense is the oxidizer, and bitterness is the catalyst; the result is psychological Tannerite. Combine these two and subject the combination to the high-velocity impact of stressful living and, kaboom; you have an explosion of misery.