Had never heard of "black box systems" so just did some Youtube...

Had never heard of "black box systems" so just did some Youtube and everything they say to look out for is exactly how the guy who rang me came across. Car salesman. Tell you what you want to hear. Anyway I am now armed with a few questions to ask the salesmam and string him out for a while. Once had a bloke call and try to get me to get into gold. An hour and a half I kept him going whilst I did other stuff on the computer. I see it as a bit of fun and a distraction. And perhaps I should have gone gold, dunno. Always the should have, bought or sold.
Anyway, thanks for your input, it is lousy weather and gave me something to do. Cheers