The small screen on top of the box suddenly lit up and a message appeared on it. She couldn’t read the words telling her that a deletion process was in operation, but she guessed that something bad was happening from the tiny skull-and-crossbones icon at the left of the screen. Then she pressed the entire keypad, desperately hoping that she wasn’t ruining the thing. A string of identical symbol-pairs ran across the screen left to right and the light behind the screen winked out.