Lots of difficult logic problem type questions with very short time constraints. I had this type of question from 3 out of 5 interviewers.
One interviewer could not be found, but eventually showed up about 20 minutes late. She was very unfriendly. I'm certain my interview was very inconveneint for her.
During the last interviewer I was asked by the boss to invent the interview questions, write them down, and then write down my answers. When I asked him what he liked best about his job his response was that it is "very boring". At that point I didn't want the job anymore!