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From: Peter Hull <peterhull90@gmail.com>
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Subject: Re: Test your ELisp knowledge
Date: Fri, 9 Feb 2024 12:54:04 +0000
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On Fri, 9 Feb 2024 at 12:17, Joost Kremers <joostkremers@fastmail.fm> wrote:
> I initially thought, "well duh, their-fun is not defined", but then I figured,
> if Stefan Monnier is asking, it's probably not so obvious, so I went with the
> division-by-zero instead...

Me too but is it just because their-fun comes first in text order, e.g.
M-: (+ (/ my-x 0) (their-fun))
gives "(void-variable my-x)"