The somber librarian believes he's Kafka as he sips coffee in the Jewish deli. Except for his blue eyes, he looks like Kafka, even says things like, "Coitus as punishment for the happiness of being together." He runs the library's video section and is writing a book on miracle rabbis. His enemies say he could use some stool softeners. For sure, a beard would help. One like his father's--waxed, pointed, real severe-looking.