We were sitting around a table, talking about someone we all know, who is very successful in our field. Instinctively, I started in. "He's incredibly full of himself," I said. "And kind of a phony." One of my colleagues, a great mimic, did a spot-on imitation of the way this fellow speaks. We laughed uproariously. The Greek chorus chimed in and piled on. A dig here. A jab there.