you were a hashira and you had been called to the masters mansion with the others when you found out he had blown up gyomei was already fighting muzan the demon king

Obanai: "cut off his head!"

Gyomei: "no he regenerates it!"

Sanemi: "he can regenerate his head- did he regenerate his pants?"

Muzan: " these are my favorite pants!"

Mitsuri: "and you didn't regenerate your shirt?"

Muzan: "do you want me to regenerate my shirt?"