Speaking from experience, it's much more enjoyable to interview a candidate who does well than one who does not. An failed interview is awkward, and then I hav

Speaking from experience, it's much more enjoyable to interview a candidate who does well than one who does not. An failed interview is awkward, and then I have to turn around and write clear and explicit feedback about exactly why someone shouldn't get hired. It's probably my least favorite job responsibility. But at least with calibrated questions, I can be fair and impartial and know how much help the candidate needed. Throw me into a room with a question I don't know, and the same general complaints apply, but now I have to figure it out as we go too, so my focus isn't on feedback and helping, but on understanding the problem.