I dreamt I was in some sort of cubicle-covered office space. I was visiting with several friends from high school and college that worked there, but I kept getting the feeling I was being followed. I heard someone chanting "tu-ba! tu-ba! tu-ba!" and I realized that was the person that was following me. I wondered why they thought I had anything to do with a tuba, and I remembered somehow a tuba had ended up in my closet and thought maybe that was what they were after. Gradually I started feeling very threatened, and I began hiding behind cubicles to avoid the person following me. Finally I was in a corner hiding, and trying to talk to a friend as if everything were normal, when I heard the tuba chanter coming around the corner. I didn't get to see what the chanter looked like, because he/she grabbed me too quickly and stuck a knife into the back of my neck. Then I woke up shouting "help!"