Horrible interviewer, very unprofessional.
You know something is very wrong when the interviewer is contentious from the get-go. He seemed to talk about everything else but the subject at hand. It was hard to get a word in edgewise without being challenged every 15 seconds. It almost seemed like the interviewer tried to keep me off balance. Now it makes sense why they keep offering the same position every 6 months or so, why would anyone would want to work in such an environment is beyond me.