LS: The hand of a worker who had the misfortune of putting it too close to the blade of a circular saw. In a flash, the bones of his forearm were cut through just above the wrist. A fellow worker wearing pair of braces took them off and used them to tie the arm. When a doctor examined the patient after about an hour, he isolated the arteries and tied them, sutured the tendons and nerves, and dressed the wound with an antiseptic cloth.