Except when everyone is trying to sleep and one person has their window up

I've been that guy, but only if the scenery is interesting. Still, my attitude is that at noon, people don't need to have a blanket placed over their cage like parrots to make them sleep.

I also was on a flight once that had a very bouncy landing with all the windows down - when I didn't realize we were anywhere near the ground yet. I'm not into tuning out reality to that degree, and don't really feel obligated to help anyone else do so either ;)