With each cue, the person begins to prove his or her paranoia true. This project stems from an experience in which a close friend of mine felt that he was being watched all the time. He thought that a camera was in his cup of coffee and that really important people were after him. These symptoms came on all of a sudden, and even though my friend is almost fully recovered, the doctors still hesitate to label his condition manic-depression or bipolar disorder. One doctor called it a "human computer virus."