grinding

When the Crane had extracted the bone and demanded the promised payment, the Wolf, grinning and grinding his teeth, exclaimed: “Why, you have surely already had a sufficient recompense, in having been permitted to draw out your head in safety from the mouth and jaws of a wolf.”

The Ass, on the contrary, had much work to do in grinding the corn-mill and in carrying wood from the forest or burdens from the farm.

The Goat, envying the Ass on account of his greater abundance of food, said, “How shamefully you are treated: at one time grinding in the mill, and at another carrying heavy burdens;” and he further advised him to pretend to be epileptic and fall into a ditch and so obtain rest.

Still kneeling upon the floor he bent forward and threw all his weight and strength upon some lever, with the result that there came a long, whirling, grinding noise, ending once more in a powerful click.