ONE was almost driven off the pavements in Wan Chai yesterday by a bevy of chef-hatted ladies banging kitchen utensils and wanting the world to know about the Wan Chai Food & Entertainment Extravaganza, due for a sizzling start on March 26. Not any old food fest, mind. The organisers want us to go native and eat ''eco-friendly'' food off banana leaves and coconut shells. Providing the victuals will be Friends of the Earth, the Prince of Wales Pub, Joe Bananas, The Frog Pond and Mad Dogs. A town crier will tour the streets proclaiming the event - but he will have his work cut out trying to be heard above the environmentally unfriendly din that is the norm in Wan Chai.