Part IA, part mitigated by the end result...
So, this is what our (only) bathroom looked like the day we moved in:

It's not fancy, but it's totally functional and it has its "charm". We are happy to live with this 'til we get the big work done (the exterior render that's holding everything else up... and I really wanted a kitchen before we attacked our bathroom, y'know?). But then one day last year I noticed a pool of water on the floor that didn't make sense because my husband was in Salisbury, and I hadn't showered yet that day. I scratched my head a bit, sent a pic to my husband to let him mull it over, and sopped it up. It didn't come back for a while. But eventually it did come back. And we weren't sure when/where/why. And then it started to get worse. The cheap laminate flooring started to warp and turn up at the seams. Then black mold started growing at the seams. We couldn't keep the bathroom free of it.
Finally, on Saturday, my husband went at the floor with a pry bar. This was Saturday:

We've found the source of the water (and a whole lot of chaos!), and will be fixing the plumbing, because it turns out the water in the bathroom is NOT coming in through the blown render in the lounge (a different issue, same side of the house).
So, now, since we have to redo the plumbing, anyway, we're going to take this opportunity to
RENOVATE THE BATHROOM! And
that is why this is not really an inconvenient annoyance. It's the fire we needed lit under our feet. We're going to
do something! Finally! Not the room we thought we'd start with, but it's a room, and it will be progress. Yay!