Do not eat yourself, others, if you must, but refrain from your own flesh, however tempting, or there'll be nothing left when you need it. From time to time you may bite a lip or suck on a hair. There is documented evidence of one desperate case, a ship's captain marooned on a desert island, who fed first on his right leg and then on his left, and by the time he was rescued was down to the thumb, index and middle finger of his right hand, fist clenched, bravely resisting temptation. I don't know what I would have done, he is reported to have said, if they hadn't found me when they did. The repressed autocannibal feeds on his own thoughts, turning them over and over, savoring the scent. Some spend their entire lives salivating over a single notion. Others, more rabid, need a new idea every second to break open and suck out the marrow. There are repressed autocannibals in high places, government, industry and the military, who secretly long to devour themselves. Only discipline (the science of self-denial) and the desire to devour others, the enemy, the competition, friends, keeps them in line, though they do have trouble deciding who's edible.