I thought the only good thing they’re good at is yelling at people to take their shoes off and “PLACE THEM IN THE TRAYS..IN THE TRAYS!!”
The Krauts do the same thing with a Kindle - if you put it in the tray they tell you 'no'; if you don't put it in the tray, you get a trip to the special room where it, and you, get tested for explosives. And they always tell me to leave my shoes on, then pull me for 'special treatment' when they set off the metal detector.
But I always get even. I frustrate their game by pleasantly thanking them at every step for making sure I have a safe flight.