In my community a group of young men decided to start a volunteer EMT, emergency medical assistance. This past week one of the Mitpallelim fell and hurt himself badly. One of the volunteers who was there in the Minyan and he treated the man. The treatment was the wrong treatment and when the man got to the hospital his condition worsened and he needed a much more expense procedure. The injured man is claiming he had to pay much because the volunteer made a mistake. Can he clam that from him?