I just had to share this story...When I worked in a large teaching hospital we had a team of Transfusion Nurses who were responsible for drawing most samples and administering the transfusions. Occasionally, however, physicians (or interns/residents) would draw the samples. One afternoon we received an unlabeled sample drawn by a physician via courier. We contacted the physician and informed him a new sample would have to be drawn. He said he would come to the transfusion service and label it right away. We told him that was unacceptable, however, he insisted. While he was on his way, we put together several samples without labels and placed them in a rack. When he arrived, we presented the rack to him and told him to select the sample to label. He actually tried to feel each tube to find the warmest one and said that was the sample he sent. Obviously we did not allow the sample to be labeled. The story has been told many times!!!