I wasa janitor at my school board for a few years, can confirm cleanliness is not a priority at all except in press releases. I was a spare and probably 70 percent of my shifts at various schools would be 4 hours to clean an entire elementary school. All i would be told to do is take out the trash and clean the bathrooms. Not to mention there was a horrible culture of laziness in most of the full time janitors as they were union and close to retiring for the most part, it wasnt uncommon for people to take 2 hours of breaks on an 8 hour shift