In what ways can I make my roommate's life a living hell ?

In what ways can I make my horrible roommate’s life a living hell ?

Obviously only legal answers apply….

She is a liar, thief, drama queen, horrible friend and person. She evicted her last 3 roommates for no reason (including me). She was also stealing and throwing away our other roommate’s personal mail.

Since I will be here for the next 30 days I was wondering what would be some ways to make her extremely uncomfortable?

I want to make her life a living hell just as she has done to mine by basically screwing me over and evicting me for absolutely no grounds.