When, out of habit, you walk down the stairs of the atrium in your employer’s building, from the third to the first floor, to head back to your desk—and then realize the thing you need to do next is on the third floor
When, out of habit, you walk down the stairs of the atrium in your employer’s building, from the third to the first floor, to head back to your desk—and then realize the thing you need to do next is on the third floor