I was interviewing for a job in Modeling and Simulation, and this interview was actually a series of five interviews (and a phone interview). Most of my interviews were very positive, and one of the interviews was fairly informal and happened over lunch. My last interview was a little bit less pleasant because some of the questions asked I did not feel were appropriate for the position (current price of Raytheon stock for instance), and the interviewer was very blunt in telling me his opinion that my college GPA was terrible.