Psychological warfare. Put a dead mouse in her desk. If you want to be more discreet put a stink bomb in there (theres ones where you can just pour the liquid and the stench will remain). If she wants to **** with you then **** with her back. When it comes to nonviolent means of retaliation (im a softie) im the master.

If she drinks wine, put a half empty (or half full, depends on how you look at it) bottle of wine in the refridgerator, dont say anything to anyone about it. But fill it up with piss. Chances are she will at least sip on it.