When people hear "Sex Offender" they often think the worst, having done time myself I can tell you that even criminals think "diaper-snatching baby-rapist" when they hear the phrase.  More often than not so-called sex offenses are breaches of public morality statutes decades old.  In the state of Oregon you can be branded a sex offender for urinating in a field when you think nobody else is around if you get caught.  Why do you ask?