My great aunt was a recluse and lived in California. My dad ended up being her power of attorney and taking care of her estate. But a few years before she died, he and I went out to see her for a week and did some stuff for her while there. Little did we know when we walked in the house that she was a severe hoarder to the point that you could barely move through the house, and she had about ten ferrel cats in the house. Poor things had to live in their own filth. There was about two inches of crusted dander and feces on all the floors, and we found a littler of dead mummified kittens under her couch. Her litter system was to put newspapers on the floor of her bathroom, and keep adding new ones on top without removing the old ones... It was about a foot deep of soiled newspapers. It was quite an experience. When she died we went back out to clean out the house and we spent ten ten hour days non stop just pulling stuff out and putting it in dumpsters, and salvaging what we could, and still didn't get it all out. But I'll never forget those poor mean abused cats looking at us like that lol.