...This order, being apparently quite disagreeable to Fournier, caused him to take out his anger on Dupont and challenge him to a duel, because whatever happened to "don't shoot the messenger", am I right?
Fournier demanded a rematch of this duel, believing it to have been conducted unfairly. And somehow, this rematch descended into a saga of 19* years (it's 30 duels over 19 years, I believe), because no one is capable of being normal in this army.
Dupont, eventually, managed to force him to promise not to bother him again after a final duel, but here's some interesting things that happened to Fournier in the meantime (followers of @a-historical-companion can expect a more properly written post on this at some point hopefully over the summer, this is only a bullet point list):
Demoted due to financial dishonesty and going AWOL apparently several times,
Taken back on as an aide-de-camp to Augereau,
Oh wait, got caught up in la mystérieuse affaire Donnadieu and was arrested and imprisoned for conspiracy against the First Consul,
Back again! This time leading an expedition under Magon de Médine,
oh wait he never even disembarked and just went back to France never mind,
Taken on by the one, the only, General Lasalle as chief of staff, because Lasalle saw the chaos and went "oh yeah I need more of that in my life",
Publicly snubbed by Napoleon at a review in 1807, who pretended not to know of his existence (probably instead knowing far too much) or service record and instead told him that his misdeeds had to be washed away in a baptism of blood (extra),
Actually did something good for himself and distinguished himself at Eylau, Guttstadt and Friedland,
Had a dragoon orderly turn up to a party with an order that needed his signature, instead had the orderly stand on the other end of the room and shot the order as signature, awarding the orderly 40 francs as reward for not flinching, then a wine bottle for suggesting another shot as "an initial",
Went to Spain and defended a town against 20,000 attackers with only 1,500 men,
You'd think he's basically reformed by now and is doing fine, right?
Cut an aide-de-camp across the face with a sabre and was once again suspended,
But too bad the Emperor needed him too much so he was reinstated and did some more decent stuff in the Peninsula,
Went to Russia, managed an entire campaign without causing excessive trouble,
Was appointed Count of the Empire...
and then demoted again after getting into an argument with Napoleon,
Was sent to prison for defeatism, was attacked by Cossacks on the way, fought them off and demanded the escort continue towards the prison,
Somehow convinced the Restoration government to give him his rank back, no idea how that one happened,
Became inspector-general of cavalry or something.
Never a dull moment with these hussars.
Thanks, Moreau. Technically you started it.