France, huh? Life is TOUGH!!!!! So did you have a good time? I was in Paris for a long weekend about 10 yrs ago....I loved it but hated it too....hard to explain. It's just some place you have to see to believe I guess. It was beautiful but there were a LOT of beggars.......

At any rate

I don't think this fighting thing for the treats sounds very serious.
Do you feed them their meals at the same time??? Separately or from the same plate (so to speak)?

As you know punishments do NOT work with bunnies.... If it really bothers you I would give them their treats in separate rooms but at the same time..put Boy Boy in the liv room, give her her treat while holding Girl Girl and then carry Girl Girl to the kitchen and give her her treat in the kitchen or something like that. Whatever you are giving them must be something special that they both really love so they will fight over it....and this is the only way I can think of to prevent it.

So you use bananas as a bribe, huh???? Mine are so easy......
yes they love bananas but blueberries (maybe 4-5 each) and apple slices get fought over too. They are such a scream!

Good luck!! Let me know how it goes!