"Class-Mates?" While waiting for my first appointment in the reception room of a new dentist, I noticed his certificate, which bore his full name. Suddenly, I remembered that a tall, handsome boy with the same name had been in my high school class some 40 years ago. Upon seeing him, however, I quickly discarded any such thought. This balding, gray-haired man with the deeply lined face was too old to have been my classmate. After he had examined my teeth, I asked him if he had attended the local high school. "Yes," he replied. "When did you graduate?" I asked. He answered, "In 1957." "Why, you were in my class!" I exclaimed. He looked at me closely and then asked...... ... ... "What did you teach?"