I went through two rounds of interviews for a graphic design position. The first was with the marketing team and consisted of a two-person panel. Both interviewers were professional, welcoming, and the conversation was focused, relevant, and enjoyable.
The second interview, however, was with two of the company directors and was a completely different experience. It was one of the most uncomfortable and unprofessional interviews I have encountered. Rather than discussing my skills or the role, I was subjected to an interrogation-style series of highly personal questions, including who I lived with, what they did for work, whether I was single, what my father did for a living, and how long he had been in that role and so on. None of the questions related to my experience or suitability for the position.
I left the interview feeling confused. Despite this, I was later offered the role, which I chose to decline. When I explained to HR that the second interview was the reason and that I considered it a major red flag, the response was defensive and dismissive, with no interest in hearing detailed feedback about my experience.