<human>: Can you give me the gist of the text in a nutshell?

To make a long story short, my girlfriend who was new to the medicine floor, left her coffee mug in an area that she shouldn't have, and the nursing manager threw it away.  To be fair, people leave thermoses and coffee cups in that area all the time without problem.  AND, this was a $30 super nice vacuum-insulated mug that I bought as a bday gift.  AND, the nursing manager threw away everyone's items/mugs without telling anyone, while they were standing not 10 feet away doing rounds (she was in a back room so they couldnt see what she was doing, and weren't really paying attention).  Nobody ever explained that you cannot leave items in that area, and when questioned the manager yelled at my girlfriend for not knowing the rules (as I said, they were never explained) and threatened to call the hospital CMO.
<bot>: HELP ME PLOT THE PERFECT REVENGE.  I have no shame and will try to carry out as many ideas as I can (without breaking the law/getting fired).