"Yes, yes — I know, Doctor," said the patient with a trembling voice, "but," and she hesitated as if it took all of her courage to say it, "what can I do to prevent getting that way again?" "Oh, ho!" laughed the doctor good naturedly. "You want your cake while you eat it too, do you? Well, it can't be done... I'll tell you the only sure thing to do. Tell Jake to sleep on the roof!"