He bobbed his tail good-naturedly and friendly, and growled ferociously and friendly; but the keenness of the drunkenness of the mate discerned the difference and aroused in him, vaguely, the intuition of difference, of play-acting, of cheating. Jerry was cheating--out of his heart of consideration. Borckman drunkenly recognized the cheating without crediting the heart of good behind it. On the instant he was antagonistic. Forgetting that he was only a brute, he posited that this was no more than a brute with which he strove to play in the genial comradely way that the Skipper played. Red war was inevitable--not first on Jerry's part, but on Borckman's part. Borckman felt the abysmal urgings of the beast, as a beast, to prove himself master of this four-legged beast. Jerry felt his jowl and jaw clutched still more harshly and hardly, and, with increase of harshness and hardness, he was flung farther down the deck, which, on account of its growing slant due to heavier gusts of wind, had become a steep and slippery hill. He came back, clawing frantically up the slope that gave him little footing; and he came back, no longer with poorly attempted simulation of ferocity, but impelled by the first flickerings of real ferocity. He did not know this. If he thought at all, he was under the impression that he was playing the game as he had played it with Skipper. In short, he was taking an interest in the game, although a radically different interest from what he had taken with Skipper. This time his teeth flashed quicker and with deeper intent at the jowl- clutching hand, and, missing, he was seized and flung down the smooth incline harder and farther than before. He was growing angry, as he clawed back, though he was not conscious of it. But the mate, being a man, albeit a drunken one, sensed the change in Jerry's attack ere Jerry dreamed there was any change in it. And not only did Borckman sense it, but it served as a spur to drive him back into primitive beastliness, and to fight to master this puppy as a primitive man, under dissimilar provocation, might have fought with the members of the first litter stolen from a wolf-den among the rocks.