Late? Yes.
A man who lives on the tenth floor takes the elevator down to the first floor every morning and goes to work. In the evening, when he comes back; on a rainy day, or if there are other people in the elevator, he goes to his floor directly. Otherwise, he goes to the seventh floor and walks up three flights of stairs to his apartment.
Can you explain why?
There are probably many possible answers but the correct one is the most satisfying.
Answers in comments on friday.
He was short.
He could only reach up to the 7th floor himself but asked for help when others were with him and when it was raining he used his umbrella.