Originally Posted by losergeek
If the worst interview you've had only involved a squirrely anti-social guy, you should probably count yourself lucky. I've had tons of interviews where the participants weren't introduced properly or their positions described. At my old job (a Crown Corporation) we had to have a third party observer to verify the results and ensure that everything was being done fairly - commonly this was someone from HR, but it didn't have to be. Sometimes it was just an admin who wasn't too busy.
Also if this was a company that sells websites then he was probably just a technical guy that was asked to be there in case you had any questions about their services that the manager/interviewer couldn't answer
Before I did HR and was studying as my major back in college, I got all these cookie cutter scenarios so I went in rather, how should I say it, optimistic. When I got into the real world, it was a mess!
Back then it was common practice for HR people to be the ones who didn't fit anywhere else in an organization. I got into an HR department thinking I would be with other HR people but instead I got put in with a lot of people who would rather be somewhere else. So yes, it was common to bring in odd people into interviews until later years made things much more legal. These days with identity theft and extra laws protecting a person's private information, unwarranted people in an interview (and even who handles your personal information) is a lot more restrictive.
It's not as likely anymore for a single HR person scoping out the resumes to look for a mate (pressure taken off my match.com) or having the interview take the participants to a club and go drinking to get a feel for the person. Heck, these days even the strip club near the school runs themselves like a corporation and conducts the interviews in a very professional manner.