Nobody told me I wasn't allowed to do it.
While not a defence in law, this is precisely the approach that is often needed in IT.
The best tester I ever worked would come up to us and say, "When I do [THIS], then [THIS], then [THIS], it goes kaboom". We would ask, "Why would you even try to do that combination", to which he would reasonably answer, "Because it allowed me to". We would then either make it impossible to so do, unless it was a safe combination and should have worked in which case we would fix it.
Thank you Gordon, you truly were Entropy's Little Buddy.
An unguarded prompt is the same opportunity (or temptation). What can I do with this? What could possibly go wrong?