Two old men were sat on a bench outside a nursing home having a chat. "How areyou, Richard?" asked George. "Im not feeling too good today, Im utterlyexhausted," replied Richard. "Ive pulled a muscle, and its killing me." "Imsurprised that a pulled muscle makes you feel so tired," said George. Richardyawned and said, "Well, it does if you pull it a hundred times in one night."