Again, I never used the term "liable". You introduced that. I spoke of criminal negligence.
And I don't believe your claim of liability generalizes. If someone else set up the detonator and then I pushed the button without realizing what it was I don't believe I'd be liable.
The party that set it up might be, but it gets really complicated and messy because it depends on the specific circumstances of all involved parties.
If A sets it up in a manner believed to be safe, B moves something in good faith which unintentionally makes things unsafe, and then C comes along and triggers it without realizing, you might well end up with a situation where no one is considered liable.
Reframed so maybe you'd better understand the relationship between these concepts. This isn't cutting edge precedent!