Things about mundane life that you’ve never given much thought but suddenly think “Now I think about it, that’s weird.”
I had one of these today. I live in a mid-terrace, neighbours are nice and quiet and we don’t hear a peep. A few days ago I had a snoop at one of the next-door neighbour’s house on Rightmove after seeing it was for sale, and realised that they have their bed right up against our party wall as I do mine. So even though I sleep in bed alone every night, there’s actually 2 people who I don’t really know just a couple of inches away from me! I don’t know why but for some reason it creeps me out. I’ve realised that in terraced houses you’re actually sharing one building with lots of people, many of whom you will NEVER interact with.