I have a trap/torture machine idea.(Going the saw route here)
So like it’s a little opening and shutting clamp.
It is stabbed in between your middle finger and ring finger and if you mess something up(or it could just go right away) it unclamps either bit by bit or all at once completely tearing apart your hand.(bone included)
Idk it’s an idea, might draw how it works later.
Might be hard to translate to a fig too.
Feel free to add on to the idea.

Just realized how morbid this is…