Bottomley: Solving the Looming Developer Liability Problem

It sounds to me that at some point the lines between software and prose might blur. Surely fictional prose is well-established enough that nobody can conceive of holding an author liable for describing e.g. damaging/dangerous/illegal behavior. How contrived must code be to not be considered code? Can one imagine publishing code as prose or art, and requiring the user to transform said prose into code, to firmly shift any idea of liability away from the author of the software?

Going the opposite direction: At some level of formal language, mathematics becomes code. Most mathematics is not done in such formal languages, but can be translated into one (with lots of work). Are mathematicians liable for damage done by our proofs?