Sometime this week a box will land on your desk, or in a bag from a client, or on the table in the pantry that already has three other boxes. This is not a snack. It is a Mid-Autumn obligation with a ribbon on it.

Taiwanese offices buy mooncakes the way they buy pomelos: in volume, from a list, with a logo. Some of them are good. Most of them are dense, sweet, and designed to be given again. Re-gifting is not a scandal. Leaving the box in the sun on a scooter pad is. If you are going to a balcony on Friday, one decent box is a better gift than four mediocre ones stacked in the kitchen until October.

You will also be asked, lightly, whether you are taking Monday. Teacher’s Day is a public holiday this year; some offices treat it as a given and some treat it as a favor. DGPA lists the calendar. Your contract lists the rest. Ask now, not Thursday afternoon.

Eat one. Give the others away. Do not write a thank-you paragraph. A line in the group chat is the whole custom.