Bullying is the use of force, aggression, coercion, hurtful teasing, comments, or threats, in order to abuse, dominate, or intimidate one or more others. The behavior is often repeated and habitual. One essential prerequisite is the perception that an imbalance of physical or social power exists or is currently present. This perceived presence of physical or social imbalance is what distinguishes the behavior from being interpreted or perceived as bullying from instead being interpreted or perceived as conflict. Bullying is a subcategory of aggressive behavior characterized by hostile intent, the goal of addressing or attempting to "fix" the imbalance of power, as well as repetition over a period of time.