A couple of days ago we had water dripping from the parlor ceiling. It happened during a storm so I thought it was a roof leak, but it turned out to be a problem with a radiator. It's been fixed now, but some ceiling and walls will need repainting (there is a bit of peeling and some rust staining); that will happen next week after they've had time to dry thoroughly. And I'll check to make sure the ceiling is still sound.
All in all, a pain but it could have been a LOT worse.