While I waited nervously on a sidewalk in the Back Bay, worrying that I had overdressed or underdressed, that I would talk too much or too little, that I would spill my drink, or that I was at the completely wrong restaurant, I was approached by a creeper. “Waitin’ for yer date?,” he asked. Why yes, I was. Both of them. Two tall, lovely blondes. Hopefully I’d know them when…