If you encounter a mentally disordered person, if the other person is injurious or self-injurious, after ensuring your own safety, selectively call 110 or 120 in conjunction with the impact of the mentally disordered person on the surrounding area, pending professional treatment. If the mentally disturbed person is a family member and the person is not obviously aggressive, you can also make appropriate reassurances and wait for 120 to send you to the hospital.