Self-cleaning public toilets, that worked exactly like this, went through a bit of a phase in Australia 10-20 years ago. They started decommissioning them after

Self-cleaning public toilets, that worked exactly like this, went through a bit of a phase in Australia 10-20 years ago. They started decommissioning them after they began trapping children during the cleaning cycle: http://www.theage.com.au/news/national/auto-toilets-a-flush-in-the-pan/2006/04/15/1144521546986.html http://www.theage.com.au/news/national/auto-toilets-a-flush-....