I’m amazed the staining on public loos it seems the floors and surfaces are wiped down but no bleach or cleaning of loo. If it wasn’t an emergencyI wouldn’t venture in most if them. I would hate the job, if I had it I would venture in with goggles, mask and gloves, flush everyone without looking at the loo, then go round with a gallon of bleach, slosh it under rim etc, leave it a couple of hours, sorry about the environment, scrub all the surfaces, bleach and mop floors. Then go round with a brush on toilets. Stick up an air freshener , then, put a note on the door out of use. They would have to use somewhere else until they realised they had to leave it as it was found. Somehow I don’t think I would get the job though.