My parent's house is being worked on right now and the other day a guy doing the floors took off a baseboard and immediately, water starts shooting out. Apparently, whoever put the baseboard on accidentally drove a nail into a pipe, just puncturing it. If the worker hadn't taken the baseboard off, there's a good chance that eventually the nail would have rusted and then water would have leaked between the walls. Right now there's a screw soldered into the hole until the plumber can get back to fix it properly. To do that, he'll have to cut out part of the ceiling in the finished part of the basement and move this unusual pipe assembly higher up in the wall. I'm nowhere near being able to afford my own home, but if/when I am in the market for the house, I'll make sure to try to get as clear a picture as I can of all the systems in the house I might buy to see what might become a problem in the future. From where I sit, being a homeowner seems very stressful.