The idea behind this design. We just moved into a new place and upon moving in discovered one (of the 3) toilets didn't work. Since there are only 2 adults and 1 toddler in our family and the bathroom is tucked away and hard to find, we figured, we will close the door and no one will even know it's there, let alone use it. Lo and behold, my in-laws came to visit a few days after we moved in. My father-in-law came out and told u the toilet wouldn't flush. LOL.... So we came up with this sign so no one would use it. Plus I find it hilarious because everytime we are at the store and I really have to go, the second I get to the bathroom it's closed to cleaning!