“REMEMBER: Your nan is not a USB port.” goes viral

{
  "input": {
    "prompt": " Photo of a DCMS-style public information poster on a rainy London street (bus stop or Tube corridor), clean government-layout design with a small UK crown/department mark, big bold black text reading exactly “REMEMBER: Your nan is not a USB port.” Commuters in coats visible in the background reacting—some trying not to laugh, one person wheezing into a scarf—captured candidly with motion blur suggesting a sudden nationwide crack-up.  "
  }
}