What's wrong with Satanichia's snapping a chopstick?

Question

In Gabriel DropOut, there is a scene where Satanichia snaps her chopstick, then Gabriel makes some comment and Satanichia gets mad. What's wrong with Satanichia's snapping a disposable chopstick?

Answer 1

The joke is that Satania snapped the chopsticks incorrectly, even if they have an apparent shape.

This is an example of 割り箸 (waribashi, lit. "splitting chopsticks")

^{Image courtesy of kufura - もらって使わなかった「割り箸」みんなは何に使ってる？様々な用途が集まりました}

And this is the expected usage

^{Image courtesy of mybest - 【2022年】割り箸のおすすめ人気ランキング25選}

Not this

^{Image courtesy of イラストフリー素材タカヲ's - 怒って割り箸を折る子供（男の子）のイラスト}