A friend of mine has a talent for thinking up (deliberately) tactless things to say to his wife. He says if she ever asks him "Does this dress make me look fat?" his response would be "Not for a woman your age."
Mine would be "Oh no honey, it's not the dress."
Fortunately for me, Mrs. Fun never asks that.
One other thing about my friend, who has only been married once: his saintly spouse made him stop introducing her as " This is Amy, my first wife." And then made him stop introducing her as "This is Amy, my current wife."
He's a braver soul than I.