This document discusses theories of social interaction and deviance. It describes the major forms of social interaction as cooperation, conflict, and competition. Cooperation involves working together towards common goals, while conflict is deliberate opposition or coercion of others. Competition is a struggle over limited resources. Deviance refers to acts that violate social norms and are subject to punishment. The document then outlines biological, psychological, and sociological theories of deviance, which variously attribute deviant behaviors to inherited traits, personality and trauma, or external social forces.