gross mother in law

Scared to leave my mil with my son alone for even a second even if I'm in the same house. She showers once every 2.5weeks.. She says thats ok because she takes an hour long bath when she does. She washes her dog every 3 weeks. She lives overseas but everytime she visits or we visit my in laws, she tries to take a bath with both my son and her dog in the same tub 🤢 shes very unkempt and her house is a mess. Shes mentally unstable and spent a year in the psych hospital where they tried to get her to take a bath by hosing her down. When she comes to visit, she keeps the guestroom such a mess with old moldy food that we have to spend a day cleaning it and airing it out. In laws visit every 3-4 months 😠 now im due with baby 2 today and theyre talking about visiting again. Mil says it would be a dream of hers to shower with both children.. Creepy as hell.