Comment by nobleach

Got feedback, "you didn't really know anything about Ruby on Rails". I was a Rails developer at the time, but no questions were asked about Rails during the interview (asked me nothing but JavaScript). I mentioned that to the recruiter, but when a recruiter is calling you to tell you that you didn't get the job, that's not the time to lodge a protest. Since this was an internal recruiter for the company, I thanked him kindly for actually calling me instead of sending an email. That was a solid move in my opinion.