The most uncomfortable experience of mine. The interviewer was aggressive, at first I thought it was a pressure interview, but then they started criticizing me personally, said it wasn't a good fit right on the spot, and then ended the interview, and questioned why I was applying for a position that was completely unrelated to my own. Still, they had clearly read my CV before giving me an interview and then ended up saying smugly that at least I had gotten some helpful advice from them.