The nickel “declines” a self-checkout transaction

{
  "input": {
    "prompt": " Photo inside a modern Arlington grocery store self-checkout area. Foreground: a coin slot on a self-checkout machine with a nickel mid-air as if it just popped back out; a shopper’s hand hesitates near the slot. Background: blurry shoppers, a “PLEASE INSERT COINS” screen, and an employee in a vest approaching. Capture the moment like a sports photo—freeze-frame energy implying the coin is actively resisting."
  }
}