An elderly patient needs a heart transplant and discusses his options with his doctor. The doctor says "We have three possible donors. One is a young, healthy athlete. The second is a middle-aged businessman who never drank or smoked, and the third is an attorney who just died after practising law for 30 years". "I'll take the lawyer's heart" says the patient. "Why?" asks the doctor. The patient replies "It's never been used".