You know exactly what she’s trying to do and you know that there are absolutely no real world applications of the Banach Tarski paradox other than impressing college freshmen and sounding smart to friends and family.
You respond a little bluntly.
“This is a joke, right? I wouldn’t expect you to carry on a joke like this so far, over a hamster you cared so much about.”
“It’s no joke, I’m going to do this and you can either join me or get out of the way!” Sarah defends. “I’m actually going to do this, and I can’t believe you don’t think I can pull this off, I’m amazing at proofs! I don’t want your opinions anyway.”
Sarah shouted, in her time of weakness you made fun of her and her proof writing skills. What do you do?