The Smelly French
I'm sure this isn't exclusively a French thing but.....
On a CDG-IAH flight (CO flight but AF metal) some French mom decided to change a baby's disgusting diaper on her seat in the middle of the flight. The bathrooms were empty!
Several people complained and the FA said something to her, but it didn't change her mind. Several hours later (the smell was just gone) and she did it again!
The only silver lining was that the crap smell masked the terrible B.O. smell from most of the passengers.
I was soooooo glad when AF was no longer a CO partner. Now they are again. I hope they have "cleaned up their act"