Dr. Jerbal Argon owns the J. Argon Institute or "clinic", and Opal Koboi was his claim to fame as his most notorious patient. Unlike most gnomes, he is very thin. Perhaps his most visible traits are his paranoid and fidgety behavior. He also believes himself to be very talented and is often afraid of losing his credit, name, and standards if he slips up. Following Opal Koboi's treatment in the clinic, almost every family who had a mad uncle in the attic brought them to Argon's clinic.