Gary Gulman in his one-man show "Grandiloquent" at the Lucille Lortel Theatre (Photo credit: Michaelah Reynolds) Writer and memoirist Gary Gulman looks comfortable as that raconteur that will "get you" with his love of words, language, and books, but the self-effacing man we see before us has a very unpleasant family history. Once the precocious child, he was the victim getting caught in the crosshairs of parents tha…