A guardian angel, exactly 1,94 metres high, lives under the Jacaranda trees in our garden in Johannesburg. This is not one of those golden European baroque angels, the kind that lives in cathedrals, and which consists only of a head and wings and a chubby butt. This one does not sing sweetly. This is an angle-grinder angel. Made in Jurie van der Westhuizen’s security steelwork business in Indus...