Once a very long time ago at View Towers I got in an elevator to go up to my floor. I was about to press my floor’s button when a maintenance worker insisted that the elevator was going downward. This threw me off since the light was on the up arrow but I made the mistake of debating with him long enough to miss pressing my floor in time. Consequently after (I think) a short travel upward, it did indeed start going down so I then had to wait for the elevator to go back down before going back up. And all because a maintenance guy got in an up elevator and insisted it was a down one. Well, at least I made it eventually!