Voyages of a Skywalker

I am in a large building. I have a room there. Late in the experience I notice a door has appeard next to my room in the long gray hallway. I open up the tall gray metal door to a strange room with shelves and shelves of food supplies. I go to joyously exclaim my findings to my roomate when I get the sense of danger. Someone very bad is in the hallway. I might even see them if the door was closed and my blind spot were elimintated. They know I'm on the other side. A man in uniform appears.