These pigs were an unstoppable plague, to the point where they were actually taking back Texas from the human race. It was sparsely populated territory to begin with; you could only wrest so many dollars out of an acre of Texas ranchland no matter how hard you worked. Anything that reduced your income made the whole proposition that much more sketchy. Rufus and Mariel had put off having a second child for money reasons, so that, in a way, was already a reduction of the human population of their fifty acres by one.