OST Desktop Support interview questions

The person that interviewed me came into the interview with the attitude that she had already found their candidate. They came in bored and uninterested in what I had to say. I was scheduled for a 30 minute time-slot, but I was in and out in about 13 minutes. One technical question and it was right at the end. I was asked where I had my technical experience without a job. I build computers for fun and I love to troubleshoot, but because it wasn't "professional experience" I was turned down.