My store is divided into two halfs with a door in between. I'm usually in the back which is the workshop and the door closed. My front door is locked with a sign that says ring bell. I have asked my mailman when he has something that needs to be folded to go thru the slot to please ring the bell. I know somedays he's off, but most days he's not.
Just a few weeks ago we were in the shop joking that it must be Christmas as the mailman was ringing the bell. Today my Chip Chat was folded in half and pushed thru the slot.
Barry