The story of Warm Norm and the Green Sock Group is quintessentially English, with a cast of wonderfully eccentric and colourful characters, including a naked litter-picker, a retired Merchant Navy officer, a generous harbourmaster, six hundred volunteers and - directing them all - Warm Norm himself. Norman (second name unknown or perhaps forgotten in the interests of poetic licence) is a striking figure - weatherbeaten, bearded, and fizzing with enthusiasm and energy.