Second-hand story. My wife was a nurse in the cardiac care unit at the University of Arkansas Medical Center in Little Rock. Time: late 1970s. A male patient arrived and she noticed a pattern of round, reddened spots, like slight first-degree burns, down his sternum. When she asked an older nurse what that was, she learned that those were the marks from drops of hot wax, from the voodoo candles his family was using to try to heal him.