The fight has started, and the two men are arguing about whether or not they should fight. The fight is over, and they're done arguing. They're back to arguing about who should fight first. This time, though, it's not the guy who's fighting first. It's the other guy, and he wants to fight him. The two men agree to fight, but they can't agree on how to do it, because they've already agreed to fight each other in the future. The only thing they can agree on is that they'll stop fighting each other, and that's all they can do.
The fight has started, and the two men are arguing about whether or not they should fight. The fight is over, and they're done arguing. They're back to arguing about who should fight first. This time, though, it's not the guy who's fighting first. It's the other guy, and he wants to fight him. The two men agree to fight, but they can't agree on how to do it, because they've already agreed to fight each other in the future. The only thing they can agree on is that they'll stop fighting each other, and that's all they can do.