Just as Sogo Doma had said, hostile negotiation was still negotiation. At the dining table, Toshiro Hijikata, who did not want to draw Tojo's attention, was not only thinking about how to deal with the other man's challenge—he was also plotting how to turn an enemy into a friend. Hostile negotiation was a form of negotiation, after all!
So, the hemorrhoid talk had actually been deliberate on Hijikata's part. After all, Sogo had already proven it could work. If it had just been Hijikata himself, he probably would never have thought of it—but Gan'an Shinomiya had been helping him out. Hadn't their young lady initially been subjected to Sogo's hostile negotiations too?
But now... ahem. Although Kaguya Shinomiya still gritted her teeth whenever Sogo's name came up, if someone actually asked her to do something to him, she would hesitate, or even refuse. Not to mention, the Kondo Group members had all been summoned by that Doma bastard. How could she possibly... Put it this way: although Kaguya Shinomiya gritted her teeth at Sogo Doma in front of Toshiro Hijikata and the others, it was merely her way of voicing her protest. Her goal was to make that Doma bastard understand through Hijikata and the others that, if given the chance, Kaguya Shinomiya would definitely bite him to death, chew him to pieces, and grind his bones to dust!
Yet because she had no actual killing intent, Hijikata and the others instead found Kaguya rather... somewhat innocently adorable. She looked fierce enough, but if Sogo were really brought here, Hijikata and the others would bet that Kaguya would not act the way she did in front of them.
In fact, Toshiro Hijikata even felt a sense of shared misery with Kaguya Shinomiya. He was always being pranked by Sogo too.