Imagine: you hastily enter an elevator and see a colleague approaching from far away. You quickly press the "door open" button, hoping that the elevator door will stay open longer. Unfortunately, as often happens, the door barely responds or does not respond at all. This scenario is recognizable to many and often leads to frustration. But what if these buttons actually fulfilled their promised function? It may seem like a small detail, but the impact of properly functioning "door open" buttons in elevators could be huge.