I went on one which was like interviewing for the CIA. They kept asking questions like "Can you keep a secret?" and talking about how discretion is so important. I didn't get offered the job but it made me ask what I was getting myself into.
I have had a few really bad interviews.
One of the most memorable was at McD's I had been unemployed for a while and I needed something. The owner kept asking me why I thought I could be a manager there. I didn't have any experience. I needed to make sure that I didn't eat there everyday because I would get fatter. (He was at least 100 pounds heavier than me.
What did I think I would do if a bus came in at lunch rush? This crap went on for an hour. I still dont know why I didn't just get up and leave. I calmly answered all his questions the best I could.
It is all a matter of perspective!!!