You cannot challenge someone to a duel, even if they accept.

The Law Explained

Before the Civil War, settling disputes over honor with a pair of pistols was a deadly tradition among Southern gentlemen. To curb the bloodshed, Mississippi codified strict anti-dueling laws, making it illegal to challenge someone, accept a challenge, or even carry the message between two duelists. The state constitution historically barred anyone involved in a duel from holding public office.