The actor Peter Fonda was in South Africa preparing for his role in a new film biography of Dr. Christian Barnard, the first surgeon to perform a heart transplant. On a tour of Dr. Barnard's medical facility, Fonda posed a question to the doctor who was showing him around: "Tell me," he asked, "when you transplant a heart from a child to an adult, the heart must be too small. How do you make it fit?"
"Oh," said the good doctor, "we give the patient some absinthe. You know, the French liqueur."
"Really?" asked Fonda incredulously.
"Of course," replied the doctor. "I thought everyone knew that absinthe makes the heart grow, Fonda!"