First flat I was in as a student, the landlords originally marketed it as a flat for students. Toward the end if the year though they filled one room with a middle-aged guy who was in town for construction work. When we (me and the other roommate) tried to talk to him about cleaning he told us he wouldn’t do that because he’s a man and it’s a wife’s duty.
After a few weeks I went to live with my parents for an internship, when I came back to the appartement it was a mess, stuff was rotting in the kitchen, the shower and the washing machine, it smelled like death, we tried to clean the place up a bit with my father to get the deposit back but quickly gave up.
Apparently the guy had his brother come over when I was gone and the other roommate went back to Brasil, and they just trashed the place. To this day I pity this man’s poor wife.