Do you set your watch a few minutes fast in order to (hopefully) arrive early, or on-time, for appointments? What happens when you get “used” to doing that though?
I once tried setting my watch ahead a few minutes to help me make it to appointments on time. At first it worked, but not because I was fooled. I would glance at the watch, get worried that I was late, then remember that the watch is fast. But that brief flash acted as a sort of preview of how it feels to be late. And the feeling is a better motivator than the thought in the abstract.