I haven't read any reports that indicate this, but I was wondering if the suspect was a disgruntled patient. I fortunately have not been threatened and I don't know how I would respond if I was. As I discontinued opiates in patients I've been yelled at and coins were thrown at my staff, but no patient has ever threatened to hurt me. I always keep the door from the waiting room to the back locked and try to address these patients by phone call or letter, rather than in person. Another pain doc in my town got death threats as a patient brandished a gun and he has started to carry a gun in his clinic. Do you have any war stories of threats, assaults, or just being in fear of a patient? What strategies do you take to reduce the risk of assault by a patient? What security measures have you taken to protect yourself?