fun one first.
I once did a coding interview entirely in bash. and the poor software engineer giving the interview did not have that as a skillset. so he was deeply confused when I spent like 70% of the time building a massive sed awk xargs one liner. then proceeded to answer every question in order with it.
I thought he was so confused by it that's why I never heard back. Turns out it was much stranger. The recruiter died. Took them months to figure out his backlog.
2nd story.
I am the responsible party for some poor persons worst interview. And I still feel awful about it. Like they were panicking cause they really wanted the role, and honestly the interview questions were unnecessarily hard and designed to induce stress ( not my call just company decision. personally I can see some of the logic for it but I question the efficacy ). result is this poor kid was spiraling. So I tried to throw them some confidence builder questions... but they were so far into the spiral they bombed those too. And like... I KNEW they knew the answers from previous parts of the interview. But like, they just lost it mentally.
I was told later they spent like 10 minutes in the bathroom recovering before doing the next stage of the interview.
I fucking hated that interview. I still think about it. Wish I coulda just sat down with em after and just apologized and told em they didn't do anything wrong. They just had a bad day and that's fine. It happens. They can try again. Like... I hate someone took it that badly. I hate I was unable to get em that confidence boost they needed to show off their skill.
Experience sometimes just plain leaves scars for everyone.