Squat in a box

Say you are in an airport. In Netherlands. And you are tired of just sitting around waiting for your flight, listening to some old lady complain about this and that. There is no better time than this to get into the metal squat-boxes provided thoughtfully by the airport and get some exercise. So it happens, the metal squat-boxes are right next to the stairs, making for a great exercise area.
The Dutch. They really do think of everything.

Squat in a box