I was on that Lauren job for a month or so. That QC you're talking about is a pretty out there character, he's definitely lacking in the people skills department. That said, I haven't run across very many dishonest QC's at all, and I've been a welder for 30 years.
BTW, that guy is NOT a CWI, he failed the test twice. I was the only one on that job with a CWI card, and I was welding. :-)