The problem with OCD is when it is not treated, for those who are around the OCD sufferer. When I rented a flat around 30 years ago before I bought my current place, the neighbor upstairs used to constantly wake me up. She would start vacuuming her entire condo, directly above mine, every morning at 6:00 am. With great energy and vigor. Making matters worse was that she used one of those souped up older model Hoovers that sounded like a freight train. She was obsessed with vacuuming those floors, she gave it a full one hour cleaning even though the condo was not even 900 square feet, these were 1 bedrooms. One time I said to her, "your condo must be looking good!" She looked at me like I was some kind of wiseass. I was glad when I moved out of there because my current place is one level, nobody upstairs or below.