Once upon a time a lion dropped his paw upon a mouse. "Please let me live " begged the mouse, "and some day I will do as much for you." "That is so funny," roared the king of beasts, "that we will release you. We had no idea mice had a sense of humor." And then, as you remember, the lion was caught in the net of the hunter, and struggled, and fought, and struck blindly, until his spirit and strength were broken, and he lay helpless and dying.