Existentialist bug fan Franz Kafka apparently left behind a rather sizable collection of hardcore porn stories that "academics have pretended did not exist," because they don't want to sully the reputation of a sad, depressive whose sole preoccupation was the pain and futility of modern life. Not surprisingly, the smut is described as "dark" and "unpleasant" ... perhaps even Kafkaesque! (timesonline.co.uk)