摘要：Dr. Leigh wanted to go home. He exited the elevator and walked toward the parking garage. It was 6:00 p.m., and Dr. Leigh, an internist, had just finished making his afternoon rounds at a community teaching hospital. It had taken longer than expected. Two of his patients had had family members in the room when he entered, and had each asked several questions. Dr. Leigh had told his wife that he would be home by 5:30, and he was worried that she would be angry with him because she was frustrated the last time this happened—yesterday. He was fishing for his car keys when his pager went off.
