Questions worth asking before a stablecoin reaches the counter
Four questions the shop-floor visit puts to an owner in Seosan-si before any test payment is sent.
I assist the Saturday seminar and I keep the day book. When Hae-won is out on a shop visit I stay with the shelves. The visits that go smoothly are the ones where the owner has already answered four questions. The visits that stall are the ones where those answers are still being invented while a customer waits.
Which mint will you accept
Dollar-pegged is a description, not a single coin. The owner needs the name and the mint they are willing to see on a confirmation. If a payer sends a different mint, the spoken line at the counter should be that the shop will not treat it as the sale. We practise the line in English. The owner writes any Korean wording they prefer in their own notebook.
Who can see the receiving address
Someone present at the counter has to be able to tell that the incoming payment matches the address the shop published for that purpose. That person does not need to hold the seed phrase on the shop floor. In fact the walkthrough asks that the seed phrase stay off the premises. The address itself is not a secret once you have handed it to a payer, so staff can keep it on a card in the drawer.
How does a refund leave
Goods come back. A stablecoin refund is another transfer, with its own signature and its own fee in SOL. The owner decides who is allowed to send it, from which address, and whether the KRW figure is the original day’s figure or the morning of the return. The reading room does not pick that policy. We insist only that the policy exist before the first real sale, and that the refund’s signature is written in the book the same way the sale was.
What if the payer sends SOL by mistake
It happens in the merchant notes on shelf B. SOL is the fee token and also a separate asset. A purse of SOL is not the USDC the shop priced. The calm response is to stop, show the payer the mint field, and wait for the coin that was agreed. Taking the wrong asset because the counter is busy is how a short queue becomes a long argument.
None of these questions requires the director to touch the keys. They require the owner to decide. If you want them rehearsed beside your own scale and your own book, ask for a shop-floor walkthrough and name the district so the travel fee is clear.
If the answers are still uneven, the shop-floor walkthrough is built to settle them in the real space.