But your garage (the first part of what is now your house), was built with a weird kind of screw, that was only sold by one shop at the time, but was cheapest.
Now your entire house is built with those screws, but they’re not produced anymore so you’ve set up a small smelter next to your home where you’re making them yourself.
Unfortunately the quality is a good bit worse, so parts of your house start degrading faster and faster, but meanwhile you’re still building all new parts with your shitty screws.
Nobody wants to replace the screws because “It’s a proven method”, ignoring all signs to the contrary.
All new parts of the house are only as good as the worst part, the screws, and the moment anyone steps on the wrong plank the whole room comes crashing down. But nobody worries, next time they’ll just use two screws.
And then your bathroom. And then convert the garage. And then add an addition. And in 10 years you have this cobbled-together monstrosity