What's up with W throwing out YOUR stuff in the trash??!! This is the THIRD time she's done this in a such short amount of time.
Maybe you might want to set up two secret cameras: one by the trash area and one in the common area. That way you can see what exactly W is doing in rifling through your stuff and tossing them aside.
WTF is going on here?
P.S. You might want put up neon pink post-it notes on your stuff with a Sharpie saying "DO NOT THROW IN TRASH!" She might get the message to leave your stuff alone.