A woman was in hospital and had been in a coma for a long time. One day, the nurse noticed a response when giving her a bed bath and washing the patient's fanny. The nurse told the husband when he next visited and suggested that oral sex may help bring his wife round. Some time later the nurse returned and found that the patient had 'flat-lined' and that there was no heart beat or lifesigns. The nurse turned to the husband and asked 'What happened?' The husband replied that he did not know but that 'She may have choked'.