Groupon interview questions

Contacted them via their webpage per the job description and was contacted by their recruiter via email to set up a time for a technical phone screen. Upon conversing with the other SDET, I was clear about my background and experience and what I was looking for, though his description of the role seemed to be counter to what my view was and my understanding of the online job description. As we worked through the coding exercise, I hadn't had a lot of familiarity with the Queue class in .Net and was asking questions to try to implement it correctly, since there was no intellisense in the online tool we were using. His tone to my questions grew more condescending in nature as the interview went on. I kept my temper down, but it is not encouraging to try to answer a question when you have someone ask about your experience in a demeaning way. I went over again my experience and where I may not know something, and he stated that the recruiter would be in contact. I had the rejection email within 2 minutes of hanging up. It's fine to not be qualified for a job at all, but you can at least be nice to the person you're talking with. Maybe it was a bad day, but that was rude.