Hunter, a Scotsman who owns 5% of BHS, says Green's critics are simply green with envy.

FORBES: Billionaires

LONDON, England (CNN) -- Simon Darby has the kind of house that makes the fathers of his kids' classmates green with envy.

CNN: Home of future happening now

Flying at the end of 60-foot control lines, they generate enough lift to launch a sailor 40 feet in the air, with hang times that make the sea-level surfers green with envy.

FORBES: Wing and a Prayer