@
Sancrea Because that's totally
not how you should deal with cats if you don't want them to piss in your boot. Anyone who wages war with a cat learns that the hard way.
Besides, Izutsumi is selfish and ill-mannered, but not mean-spirited. She considered what she did to be acceptable behavior, so punishing her for it would only confuse and antagonize her (cats work the same way, fwiw). The way diplomacy works, if you want to make an selfish person behave, you need to assert cooperation as the way of mutual benefit and demonstrate any other way to be unsustainable. I'd say the party members were reasonably good at it thus far (not surprising, considering what social skills it takes to survive in the dungeon), it's just that it always takes a bit of time for an adult person to change their ways even if they want to.