Like everyone of my generation I had a favorite Beatle, and about a year ago we actually met. My husband and I were having lunch at Lexington Candy Shop on Lex @ 83rd, a favorite local coffee shop. The place prides itself on its celebrity patronage with signed photos on the walls of Woody Allen and others, and stills from a scene in Three Days of the Condor that was actually filmed there. At lunchtime it’s usually crowded and we were lucky to get two stools at the counter. Then my...