We'll be on a drive somewhere, usually a long one and miles from home, and she'll say: "did you check the front door was closed" and I, of course, can't remember if I did or not. So I have this niggle about the front door and so does she and it impairs the enjoyment of our trip. I wish she'd just shut up because if I did leave the front door unlocked there's nothing I can do about it. So what I do now if she asks me one of her "did you" questions is answer "yes" because at least one of us feels reassured instead of both of us feeling niggled.