Have any of you visiting alumni ever had a dream in which you dreamed that you were back here in school at Duke during an exam? It's a fairly typical alumni dream. The dream often involves some problem you have with the exam. You have studied all night for the final in organic chemistry. But now, on the morning of the exam, you find that the classroom door is locked by Dr. Wilder. You pound on the door, but you can't get in. Another such dream involves your sauntering into class one day and discovering to your horror that it's the day of the exam but for some reason, you never got the word. Then you awake in a cold sweat, trembling all over, only to find that it's a dream. You are safe and sound in your upwardly mobile home in Scarsdale. You breathe a sigh of relief, you have your BA degre…