Dick Cavett on the art of the insult. I always liked the famous line attributed to George S. Kaufman from back when he was a drama critic. A playwright who disliked Kaufman had a new play opening and was obligated to invite G.S.K. to Opening Night. He sent two tickets with a note that said, "You can bring a friend if you have one." Kaufman sent back the tix with a polite note that he was busy that evening but "I shall attend the second performance if there is one."