I don't know, i think the best questions are the ones where candidates fully understand what is being asked about them. If they aren't able to self-assess did they really understand the question?
[1] https://www.wayup.com/employers/blog/how-a-positive-candidat...
When rejected, or from an otherwise negative experience.
It's not necessarily negative emotional associations. Usually it's that I picked up on signal that the company has serious problems -- either overall, or with a key person -- which suggests I shouldn't depend on the company as a vendor.