With access to his share of the family trust, billionaire John Hancock doesn’t need to lift a finger to have more money than he could spend in his lifetime. But by his own telling, Gina Rinehart’s estranged son has in recent years been after something “a little more exciting”.

To that end, he’s made well-publicised investments in Vulcan Energy, Creso Pharma and Magnis Energy. Giving him all the adrenalin he could crave.