Yeah, same experience. I interviewed a long time ago (something like 5-6 years ago), and the interviewer sounded bored and grumpy the whole time. I told them before I interviewed that I didn't know of any of their core languages well enough to interview in them (Python being the only one I could possibly perform well enough with), but they said doing it in Ruby was fine since I was going for a testing position where they used Selenium and Ruby (no clue if that was true since the guy who interviewed me said it wasn't). The interviewer was just severely adversarial the whole time, constantly pointing out "you can't do that" syntactically or "that won't work" even though I'd step through and show them links or irb runs that proved otherwise.
And what's the deal with doing code interviews in Google Docs? I don't know if that's how it's done now, but it was extremely high-pressure. Given that he could see every keystroke and was pretty un-cooperative, it made for a super unpleasant interview with the constant feeling that I couldn't think or explore the problem given.
Needless to say, I didn't progress.