The customers who never ask the price are the ones who stay longest. He only ever asked about the length, twice.

• The Young ConstableCould I possibly ask for a description...
  The Chandlery OwnerYou should've asked that the night it mattered.
• The Lighthouse KeeperThat customer paid down to the last coin.
  The Chandlery OwnerYou never even set foot in my shop, old man.