Personally, I think those sound more like "stress interviews" than "inappropriate interviews." I've heard that some schools (like EVMS) will have one interviewer purposely try to get you all riled up. They'll challenge everything you say, and seem very negative about your responses. They're trying to see how you handle that kind of a situation.
Of course, the interviews you cited above could really just be someone who has a chip on their shoulder or is having a bad day. If it were me, I'd try to determine that based on the rest of the interview, if the interviewer suddenly seemed cordial or friendly at the end when it was over, if SDN's interview feedback forum mentions stress interviews, etc. Or, you could go to the admissions office and say you had an interview with so-and-so, and you weren't sure if they were just giving you a stress interview, or if things were a little "off." See what they say. I don't know. It does sound like a tough situation.
I felt that I had a bit of a stress interview (at least at the beginning) at UIC, where I was asked as I walked in and before I could even sit down, "How old are you?" It was very abrupt and confrontational, but I just smiled and said how I thought my "advanced" age was an asset. He then cut me off and said he agreed that non-trads bring a lot to the table. He then immediately asked "Have you ever been married?" (I've posted about this elsewhere on SDN). When I said no, and said no more, he said, "Well, everyone has their reasons...." in a very judgmental tone, and waited. I did my best to not let it ruffle my feathers and responded cordially. When I said I've got family, friends and a dog at the end of my response, he said "I hate pets." And waited to see what I'd say. I just shrugged and said "Oh, well, I really like my dog." Then I just smiled and sat there. After that, the "stress" questions and combative attitude went away for the most part. I think he was being abrupt on purpose to see how I would handle it. And at the end, he said that I was exactly what they're looking for and smiled and said he really enjoyed meeting me.
Anyway, my point is, no matter what an interviewer says or does, keep your cool and be cordial. Just do your best. If it's not a "stess interview" and they're really off their game or a jerk, definitely mention it to the admission office. But try to see if you can tell the difference just in case.....
