Follow-up to: Should we answer questions that are likely to be closed?
I recently encountered a question that basically asks how to defraud companies. The OP was "asking" if they could apply for a bunch of remote jobs, not really do the work, and collect 2 - 3 months of salary before they're fired. I put "asking" in quotes because its premise is so obviously ridiculous that I'm pretty sure that we're being trolled, but in any case, several people gave (good) answers explaining why that's a terrible idea. My question is, should we even take questions like this seriously enough to answer them in the first place, or should we just downvote, flag them as Rude/Abusive, and/or vote to close? What's the proper way to handle this kind of question?
(Note: unlike my previous question, I'm not just asking about questions that are merely off-topic - I'm asking about questions with obviously ridiculous premises, such as how to defraud companies).