Throughout history and in all known societies, people have believed that mental disorder and violence were somehow related. However, the consensus of modern scholarly opinion has been that no such relationship exists. Recent epidemiological studies cast doubt on this no-relationship position. Denying that mental disorder and violence may be in any way associated is disingenuous and ultimately counterproductive. Dire implications for mental patient advocacy, for mental health law, and for the provision of mental health treatment need not follow from candidly acknowledging the possibility of a limited connection between mental disorder and violence. The data underscore the need for readily available mental health services in the community and in correctional institutions to make both a small contribution to community safety and a significant reflection on our common humanity. Tables and 66 references (Author abstract modified)