wow, what an interview. the interviewer just bluntly said something like "you are not a good fit", "you cannot do this job" and kept interrupting. I got pissed and asked him to clarify his questions, and at the end I figured he's looking for something else and kept asking the wrong questions. Even if you don't agree or you decide there's not much to explore further, or you're not happy with someone and try to bring up a point, you can still respect other people's time and effort, and bring up the concern in more considerate ways. It left a really bad taste, feels like getting a random attack for no reason, and most people will find it distressful.