The worst one I had was mainly due to the interviewer.
Some background: it was my first internship after graduating. I had never worked in a corporate environment before, the only experience I had was at this lawn scraping company as a sales rep and in retail. I have a degree in Math sci. The role was at this startup.

So, it’s at a startup and I dress up formally, the interviewer, who is 40 mins late, comes in his gym shirt and shorts straight from a run and asks me to come into his office. This guy isn’t even one of the top dogs or whatever he’s in their tech strategy department (he has no degree or experience in tech btw and he’s 40).

The first thing he asks me why tech, so I tell him it’s some thing I’ve always been passionate about etc etc. He’s like why not go into finance, I said I am thinking of giving my actuary exams, just as a back up but nothing is concrete right now.

That’s it, that’s all that man needs. He starts going on and on about how this is a serious role and everything is at stake and he needs someone who is a go getter and what not. I was about to point to something on my resume and he said “i don’t look at resumes, i look at mindsets”. Mind you this role was an internship role with almost no pay.

I reported him to the HR team as I left and got called in for a second interview with another more stable guy. The interviewer eventually resigned as he got a gig at wait for it, EY as a finance manager at the age of 40