Some of the most common of these sick reactions with which the nurse must deal are enhanced suggestibility, repression, oversensitiveness, stubbornness, fear, depression, and irritability. And each one demands a different method of approach if real help is to be given. Old Isaac Walton wrote a book many, many years ago called "The Complete Angler." He was a famous amateur fisherman, and he says there are only three rules to be observed and they will bring sure success: 1. Study your fish. 2. Study your fish. 3. Study your fish. If the angler follows these directions, he is not apt to offer the wrong bait. When he knows all their little peculiarities, he will know how to catch his fish. The "complete angler" has an unlimited patience and an infinite sense of repose and calm. He never hurries the fish, lest they become suspicious of his bait. And he proves that these three rules work. The nurse who accepts every patient as like every other, and treats him accordingly, will never be a great success. The nurse who "studies her fish" and learns their psychology, will be a therapeutic force. She will know the _why_ of the way that patient acts. THE DELUDED PATIENT If the patient's mind is temporarily clouded through infection or suffering, he may be reacting to a delusion, an obsession, a fixed idea of disability, a terrifying fear. Sometimes he persistently refuses food, and gives no reason for it. The unthinking nurse is tried, puzzled, and irritated. In other ways, perhaps, the patient seems quite normal. But, after all, the explanation is very simple. He probably is as confident that the food is poisoned as you are that it is as it should be. No arguing would convince him, for, to his mind, the nurse is either a complete dupe or an agent of the people whom he knows are plotting his death. And urging him only strengthens his conviction. The writer recalls one such case of a patient who had to be tube fed through many months, though a tray was set before her three times a day--and as regularly refused. Then one day she was seen slipping food from off another patient's tray and eating it greedily, not knowing she was observed. When questioned, though she had never before given a reason for refusing food served to her, she said that "they" had nothing against Mrs. B., so wouldn't try to poison her. Her reasoning was excellent when one accepted her premises. She had bitter enemies. They were not enemies of Mrs. B. and would not harm Mrs. B. Therefore she dare not touch her own food, but could eat Mrs. B.'s if no one knew.