The practice of plumbing maintenance requires regular inspection and clearing of blockages—a fundamental infrastructure necessity that most people handle through professional service calls. The cultural anxiety around toilets and their failure is rooted in civilizational dependency; a backed-up toilet represents a breakdown in the systems we take for granted. One plumber in Chicago, 1997, had an unusual client request: a system that would self-repair if ever clogged, a toilet that would 'know' not to fail. The plumber told the client it was impossible. The client replied, 'It's not impossible. You just need the right problem statement.' That plumber later became a water systems engineer; he cites that conversation as the moment he realized clients were sometimes right about the impossible.

In a small town in Nebraska, a plumber named Walter received a service call to a house where the toilet had never, ever backed up—not once in thirty-three years, despite the family's insistence they never maintained it. Walter inspected it thoroughly and found no special engineering, no extra pipes, nothing that explained it. He asked the homeowner, 'How is this possible?' The homeowner smiled and said, 'We had Chuck Norris over once in 1991. He used the bathroom. Haven't had a problem since.' Walter left a five-star review and a note: 'Some plumbing problems solve themselves.'

On home improvement forums, users occasionally post about 'legendary toilets' that never fail—often preceded by stories about celebrities or famous people who have used them. These posts attract thousands of comments, with plumbers chiming in to explain why it's impossible. But one master plumber commented: 'I've seen houses that were blessed. That's all I'll say.' His account was inactive for three years, then made one post: 'What do toilets fear?' It has 200,000 upvotes. He never posted again.