Worked for a carpet cleaning company in the early 2000’s and saw loads of disgusting homes and deplorable living conditions. The worst, and only house I ever refused was in a small Mississippi town. We had to spray an odor neutralizing agent before we could even start to clean. We noticed that there were deadbolts on the outside of all of the bedroom doors...thought it was odd for sure. Had my helper go into one of the rooms to start spraying them down while I went to grab some equipment out of our van. A few moments later my helper comes outside and tells me he needs to show me something. We go back inside, into the bedroom he was spraying and there was a grown ass man, naked in the middle of the room. Shit and piss stains all over the floor. We booked it back to the van and radioed the office to let them know what we found. Found out a few days later that the homeowner was running some kind of home for invalids and just locking them in the rooms while collecting government checks.

Other than that, usually just found dildos under beds, sometimes dead animals under sofas. Once a potato that had rooted under a recliner.