IF IT BECOMES necessary for one of your characters to make a sincerely truthful statement after a series of prevarications has damaged his credibility, the statement must begin with the word “hell,” as in “Hell, I s’pose you deserve this more than I do,” or “Hell, I was never really in Mogadishu.” It is impossible for a sentence properly begun with the word “hell” used as an interjection to contain any insincerity whatsoever.