Even though thousands of heart transplants have been performed, imagine how scared you would be if you were to undergo the knife for that procedure. Then imagine how much worse you would feel when regaining consciousness, to find out that the doctors accidentally put the wrong heart in you, one that doesn’t match your blood type and one which your body is very likely to reject, perhaps before another donor shows up! It was big news on August 16, 1991, when a doctor in Portland Oregon, made himself famous with this very mistake. But, he wasn’t the first time for this type of accident. It happens all the time. Well, actually, it has happened to at least eight other people so far.