In Franz Kafka’s late story Der Bau, The Burrow, an animal tells of the underground burrow it has built to protect itself. Even when the burrow is finished, the animal reads every sound as a sign of attack. A program note of the Karlsruhe State Theater describes it: Jedes Geräusch, jede Abweichung und jede Unregelmäßigkeit deutet auf einen drohenden Angriff hin. Every sound, every departure and every irregularity points to a coming attack. Vorsicht und Wachsamkeit mutieren zur Paranoia. Caution and watchfulness turn into paranoia. Kafka never finished the story.