I would call her husband and tell him that you felt bad having be a part of her cheating on him, then insist its true. Then at the end of the month slam her with restocking fees, email her or IM her **** form a anonymous email or SN(I can help with this part if you want) while the boss is in the room and ask if she will check her email that you sent her something important(the trick is to actually send her something so it doesn't look susupicious) then be like ohhh what is that?? looking at **** on a office computer??? and she will get fired after she watched **** and had **** load of fees and her husband leaves her and to top it off, pop her tire"on accident" and make sure the spare is popped"on accidnet" yeah that would be sufficient revenge