re: "Why would he have me sign an NDA, and call me from the UK and send me the proprietary information?"
I could send you an NDA and I could send you all kinds of propriety information. It doesn't make me a real client. Or a good client.
Thanks to you and everyone on this issue. It seems two more might be in the pike. I'm doing a paid sample today. But the second client I alluded to has disappeared. I don't expect to hear from them again. If I do, it's likely to cry on my shoulder about how they can't afford me. Best wishes to all.