He has observed that after this step there have often followed attempts to injure him; a stone has been flung at him, a long pole thrust into the water; he has been shot at, or felt the pinch of a wire. He remembers this, and does not wait for the attempt to be repeated, but puts himself into safety. If he did not realise that it was a man--and a possible enemy--he would not trouble. The object consequently of the tricks of the poacher is to obliterate himself. If you can contrive to so move, and to so conduct yourself that the fish shall not recognise you as his enemy, you can do much as you please with him, and in varying degrees it is the same with animals. Think a moment by what tokens a fish recognises a man. First, his light, and, compared with other animals, brisk step--a two-step instead of a four-step, remember; two feet, not four hoofs. There is a difference at once in the rhythm of the noise. Four hoofs can by no possibility produce the same sound, or succession of sounds, as is made even by four feet--that is, by two men. The beats are not the same. Secondly, by his motions, and especially the brisk motions of the arms. Thirdly, by this briskness itself; for most animals, except man, move with a slow motion--paradox as it may seem--even when they are going along fast. With them it is usually repose in action. Fourthly, and this is rather curious--experience seems to show that fish, and animals and birds certainly, recognise man by his hat or cap, to which they have a species of superstitious dislike. Hats are generally of a different hue to the rest of the suit, for one thing; and it was noted, a century ago, that wild creatures have a particular objection to a black hat. A covering to the head at all is so Opposite to their own ideas that it arouses suspicion, for we must remember that animals look on our clothes as our skin. To have a black skin over the hair of the head is somewhat odd. By all these signs a fish knows a man immediately, and as certainly as any creature moving on land would know him. There is no instinctive or hereditary fear of man at all--it is acquired by observation (which a thousand facts demonstrate); so that we are quite justified in believing that a fish really does notice some or all of these attributes of its enemy. What the poacher or wild hunter has to do is to conceal these attributes. To hide the two-step, he walks as slowly as possible, not putting the foot down hard, but feeling the ground first, and gradually pressing it. In this way progress may be made without vibration. The earth is not shaken, and does not communicate the sound to the water. This will bring him to the verge of the place where the fish is basking.