I discovered that the air conditioner upstairs in an unused bedroom was leaking water inside the room. And there was a pair of $1000 oriental rugs against the wall under the window. They were soaked through, and for long enough so that they started to mold. They'd also been wet long enough so that the wood floor beneath them is damaged, and there's a chance there's mold behind the wallpaper. each of these rugs is heavier than I can carry on my own even dry. Water soaked they're seriously heavy. But after a long struggle I managed to get them outdoors and laid out on the deck. So to clean up the mess I tried using some of the strongest cleaner I had, which was a hospital strength disinfectant cleaner. Well, turns out that stuff has a shelf life. And it had begun dissolving the bottle it came in. I poured some in a bucket of water to clean up the mold, but as I was washing the mold, with my hand submerged in water, my hand started to burn. I went outside and took the hose to my hand, but couldn't wash the stuff off. My hand still felt like it was burning with a hose pouring cold water on it full blast. I went to the sink and used a ton of soap and water, and even submerged in soap and water it still felt like it was burning. About this time I figured the emergency room was in my immediate future, but I tried one more thing, i had a can of denatured alcohol. So I used that 3-4 times, and the burning finally stopped, and more soap and water to clean that off. Only minor visible skin damage. And I still had to clean the walls and floor with a couple more things to get the whole mess cleaned up. Then I went to rent a carpet shampooing machine and spent a couple hours trying to salvage the rugs. But it looks like they may be too discolored, and I've still got to wait until they dry to see if they don't stink anymore, or they'll have to be thrown away. And they were high quality oriental rugs, 8'x12'.
So costly day.