In college I lived with my ex and two other men. They were very very dirty. They never cleaned up after themselves or did any chores around the apartment. It was way more than the occasional pizza box. There was cigarette ashes on the carpet, piles of trash, food left everywhere and, most annoyingly, always a sink completely full of dishes.
I got very angry one day, though. We had a Brita pitcher that never had water in it. Ideally, when you finished the water you would fill the top of the pitcher and put it back in the fridge so someone else could drink some delicious, cold, clean water. This was too foreign a concept and every. single. time. I went to drink some delicious, cold, clean water the pitcher was empty. One day I had had enough and I threw the pitcher across the room and it broke. Actually it shattered. I would never reach in to an empty pitcher again.