<human>: I lived with a girl for 4 months. We were best friends before hand. I moved in with my boyfriend and she moved into to this two bedroom apartment with her boyfriend. Two months after moving when she was legally allowed to drink she started going out all the time which was cool, no problem, enjoy your "of aged-ness" but along with drinking came parties and excessive drug use, disrespectful guests. I caught her cheating on her boyfriend one night and they broke up. He moved out. A few weeks later came the last party. I worked 15 hours and came home to an apartment full of people, completely trashed. I guess my boyfriend at the time communicated to her his displeasure with the state of the apartment and she did not handle it well considering she was heavily intoxicated. My mom dropped me off and wanted to see my apartment and when we walked in the door she started punching me. I chilled in my room for the rest of the night in order to avoid and further conflict or at least until she left and when I came out of my room there were holes in my walls, broken chairs, everything was trashed. I called the police but it was frosh week and they said they wouldn't be over until 5 in the morning so I said fuck it (had to work at 7am the next morning) and planned on patching the hole myself. when she returned after the bar she completely forgot about the hole she put in the wall (she is a black out drunk) and started beating down my door. I called the cops crying and they came right away. I moved out of my apartment the next day. she was evicted a few months later and since I was on a lease I suffered the financial penalties. 

So reddit, what are you worst roommate stories?

Could you distill the essence of the text into 1-3 sentences?
<bot>: Moved in with friend, turned into party animal, shit got physical so I left. Had to pay for her eviction a few months after