The cleanest carpet in the Midwest
I think our upstairs neighbor has OCD. He vacuums his living room at least every other day, often at 10 or 11 PM. He vacuumed it yesterday, and now he's vacuuming it again. To my knowledge, he doesn't have pets, or kids. I'm all for a clean rug, but seriously? Every other day? Does he have a sandbox up there? An enthusiastic pet gerbil? Is he cutting cocaine on the coffee table and spilling some? (OK, better not think about that.)
He also seems to move furniture around a lot more than seems absolutely necessary, but hey...who am I to judge? After all, I only vacuum our carpet about once a month. Maybe he's tormented by our lack of housekeeping noises and is trying to give us a hint?