I'm angry. I came home to find my sister wearing black nail polish. She has been banned from nail polish because she makes messes that cannot be cleaned up. The only way she could get the polish would be to find the key and open up the case. Then, I went to go take a shower. Guess what, it reeked of nail polish removed. She couldn't bare to 1) Take it outside or 2) Remove the polish pads and put them in the outside garbage bin. Now, she's used my (brand new!!!) mascara. When I asked her why, "Because I wanted to". We've gone through this before, she knows she needs my permission to go in my room. Granted, I've barged into her room, only because she ends up with all my clothes in her closet. I'm cranky now. My parents won't put a lock on our doors, safety hazard. Anyone got any tips?