Kentucky actually has an oath that all office-holders must swear in that Commonwealth. Even judges and presidents of Kentucky universities.
Typically, a judge and honoree stand facing each other, right hands raised. The judge recites the oath of office which includes this reference: "I, being a citizen of this State, have not fought a duel with deadly weapons within this State nor out of it, nor have I sent or accepted a challenge to fight a duel with deadly weapons, nor have I acted as second in carrying a challenge, nor aided or assisted any person thus offending, so help me God."
I think it's kind of cool. It probably encourages proper decorum, too. After all, judges, politicians, and university presidents are not reknown for their truthiness or sincerity.