Keys to the cabinet

There are three file cabinets in my room. The person I share my room with uses two of those cabinets. The third is under the stairs that lead to the boiler room. It does not have any of the racks that you hang the folders from. So I have been piling the folders on top of each other. I was planning on spending more time last Friday organizing that cabinet and sorting out my two new algebra classes. So after I finished grading and entering it online, I went back to the cabinet, and it was locked. I do not have a key. The other person in my room does not have a key. So I asked the secretary if she had the key. She gave me a handful and said try these. None of them worked, so I went back and she gave me the bin of lost keys. There were close to 100, and she said good luck. I needed more luck because I could not find one that worked. So all of the tests that my PreCalc students have handed in and lock and inaccessible. At least I am not worried about the being lost right now.