The idea of upholding your honour if you are gentleman by fighting a duel is a very romantic and rather impractical notion. Literally an engagement in combat between two gentlemen with matched weapons and the faithful representative of each, the goal of the honourable duel was usually as a matter of challenge of the champion which developed out of the desire of one party (the challenger) to redress a perceived insult to his sovereign's honour. It was fought not so much to kill the opponent as to gain "satisfaction", that is, to restore one's honour by demonstrating a willingness to risk one's life for it. And in a lot of cases a woman was involved.
So whatever you are dueling with this Monday, have a week full of savoir faire!