Just then, whether it was the cold of the morning that was now approaching, or that he had eaten something laxative at supper, or that it was only natural (as is most likely), Sancho felt a desire to do what no one could do for him; but so great was the fear that had penetrated his heart, he dared not separate himself from his master by as much as the black of his nail; to escape doing what he wanted was, however, also impossible; so what he did for peace’s sake was to remove his right hand, which held the back of the saddle, and with it to untie gently and silently the running string which alone held up his breeches, so that on loosening it they at once fell down round his feet like fetters; he then raised his shirt as well as he could and bared his hind quarters, no slim ones. But, this accomplished, which he fancied was all he had to do to get out of this terrible strait and embarrassment, another still greater difficulty presented itself, for it seemed to him impossible to relieve himself without making some noise, and he ground his teeth and squeezed his shoulders together, holding his breath as much as he could; but in spite of his precautions he was unlucky enough after all to make a little noise, very different from that which was causing him so much fear.