A volcanic eruption produces lava, ash and gases. ... Volcanoes cause limited erosion directly; the underside of a new lava flow scours topsoil or loosely consolidated sediments. Volcanic eruptions are the indirect causes of substantial erosion through the action of volcanic debris on the atmosphere, land and water.
I believe the answer is: Borderline personality disorder
People with borderline personality disorder tend to have inconsistent image, moods, and behaviors.
This situation often caused the people around the victims to have a very hard time in adjusting and accepting their behavior and make it very hard for the victim to develop meaningful relationship.
Yes it does impact compound interest it could still add up if it is a big number