The brown paper in the hallway

You know how sometimes you come home at the end of the day and there are long strips of brown paper on the floor in the hallway of your apartment building? “Who put these here?” you might wonder to yourself. Why would someone put these here?

Is it to protect the floor against something messy? But then what about the section of carpet not covered? What about the brown paper discontinuity between the sheet going down the hall and the sheet near the elevators? Not that there’s any evidence of mess. Even so, why leave it here? If its for some chore, why lay it out beforehand or leave it afterwards?

It must just be another one of those days.