A doctor has an affair with one of his nurses. Two years into the affair the nurse informs the doctor she is pregnant with his child. Not wanting his wife to know who the father is, the doctor gives the nurse a sum of money and tells her to go to Italy. "When the baby is born," says the doctor, "just send a postcard to me and write 'spaghetti' on it." The nurse agrees and moves to Italy.
Nine months later, the doctor is seeing patients when his wife calls. "Honey," she says, "You just received a very strange postcard from Italy and I'm sure you would like to read it when you get home."
"Yes, yes," the doctor replies brusquely, and hangs up the phone.
Finally the doctor drives home. The wife shows him the postcard; he reads it, then falls to the floor with a heart attack. The wife calls the paramedics, who rush the doctor toward the hospital.
"But what triggered the heart attack?" asks one of the paramedics to the doctor's wife.
Tearfully, she showed him the postcard. The paramedic read:
"Spaghetti, spaghetti, spaghetti. Two with sausages and meatballs, one without."