your house no longer allows you inside. you are the source of mess
Your house let’s you in, however it notices that you are full of dirty bacteria that need cleaning. Now how to reach those nasty bacteria in your gut?
Granted. Being truly clean will of course demand sterilization. As part of a daily cleaning cycle the house seals itself and becomes an autoclave. The building becomes pressurized and the temperature is raised to 270 degrees fahrenheit for 20 minutes. You’ll probably wanna be gone when it happens.
The house now excretes all rubbish out the back, which needs to be shoveled into bags.
It will need regular trips to the vet.
It grows a tongue and cleans itself like a cat.
Granted. There is a faulty wire, and your house sets itself on fire. Every stain, cobweb, misplaced item, trash bin and general mess is now gone, along with everything else.