Thanks Zaphod hope your glasses haven’t turned black 
I wear these on one head nowadays for anonymity. 
Why they haven’t worked yet I don’t know.
It means Visitor in Afrikaans. I spent a few months there
Elands Rand Goldmine and a few other places.
Zaphod 
Besoeker ah that explains it - sounds fantastic!
The nature of the job I guess. I suppose some people would have considered the opportunities of some of the more exotic places I’ve been and, in truth, did enjoy that for the most part.