Just Doesn't Make Sense

While travelling to Berlin the other day, I noticed the same puzzling situation twice. What happen was the following... a woman rush is in a terrible rush to catch her train. She runs along the upper level of the train station, pulling a carry on piece of luggage on its wheels. The moment she gets on the escalator, she stops and stands and waits for the escalator to move down to the lower level at a snails pace. This doesn't make sense. There is no sign that says "Don't move on the escalator". Doesn't that seem strange to you?