habits not held lightly
When I was young lad living in my parents' house, the light in the stairwell in said dwelling was controlled by a single switch, which was found at the top of the steps. Due to this setup, one perforce had to ascend the stairs before activating any sort of illumination. Even though this less-than-optimal situation changed when the ancestral home was expanded, I couldn never manage to remember to use the new lower-level lightswitch; the other one was still in the same place, after all. Even worse, though I've now lived away from home for as long as I've had this blog, more often than not I still go up the stairs in the dark and turn on the lights at the top.
True story.