My office has a door, so I consider it "private" as far as personal grooming goes, though if I'm doing anything that could make a mess, such as nail grooming, I clean it up - there's a garbage can right there. When I first moved into the office, I found out that the previous office dweller clipped his nails regularly in the office. How? Because instead of throwing them away, he put his nail clippings IN THE DESK DRAWER. I had to clean it up myself - no one had been in the office since he died, six months earlier, except to wipe down the desktops and throw his documents into boxes.