Old Lindley sat down at the doctor's desk.

"What is your problem?" asked the physician.

"Well, Doc, after the first, I am very tired. After the second, I feel all in. After the third, my heart begins to pound. After the fourth, I break out in a cold sweat. And after the fifth, I am so exhausted I feel I could die!"

"Incredible!" said the M.D. "How old are you?"

"Seventy-six."

"Well, at seventy-six, don't you think you should stop after the first?"

"But Doctor," exclaimed old Lindley, "how can I stop after the first when I live on the fifth?"