Mamie made frequent trips to the branch post office. One day she confronted a long line of people who were waiting for service from the postal clerks. Mamie only needed stamps, so a helpful observer asked, "Why don't you use the stamp machine? You can get all the stamps you need and you won't have to stand in line." Mamie said, "I know, but the machine can't ask me about my arthritis." People still need human contact.