On Wednesdays, the end of my working week, they would say, “Enjoy your days off!” And then because they’re considerate people who know that it’s hard to be a working mother, they’d correct themselves to say, “No, your days at work are your real days off, aren’t they!” But it’s not a question of which days to refer to, it’s a matter of there never being an “off.” Unlike a bicycle trailer, it turns out you can’t conveniently unhitch motherhood from who you are.