There’s always something on their face. You don’t know what it is, or how it got there, but it needs to come off before we meet the grandparents! “Schmutz!” is a love letter to that universal parent move — the lick-the-thumb wipe, the sleeve grab, the “hold still for one second” that never actually takes one second. Sometimes it’s crusty, sometimes it’s soft, and it’s always the most embarrassing moment.