Doctor Predicts Longevity

Doctor: You're in good health. You'll live to be eighty.  
Patient: But, doctor, I am 80 right now.
Doctor: See, what did I tell you.

Johnny Being Johnny

A young mother paying a visit to a doctor friend and his wife made no attempt to restrain her five-year-old son, who was ransacking an adjoining room. But finally, an extra loud clatter of bottles did prompt her to say, "I hope, doctor, you don't mind Johnny being in there." "No," said the doctor calmly, "He'll be quiet when he gets to the poisons."

Six Weeks to Live

A guy goes to see his doctor, and the doctor says, "Well, I'm afraid you have six weeks to live." The guy says, "Oh damn, well what should I do doctor?" The doctor tells him, "You should take a mud bath once a day for the next six weeks," and the guy asks, "Why? Is that supposed to help?" and the doctor says, "No, but it'll get you used to being in the ground."