When Monday is buttoned with Tuesday.
You know, when you're putting on a shirt that buttons up the front and you don't pay attention and you don't line up the buttons correctly with the buttonholes and so you're off. Lining things up, your mind was elsewhere.
You're still clothed, your chest and abdomen are still covered, but not in the way they should be.
Question of the day: when was the last time you thought you had things lined up and you really didn't?