VEGETABLES have become rare commodities in various Malaysian cities all of a sudden. If any, their prices are soaring. "Prices of celery cabbage, long beans, greens and lettuce have risen by 30 percent this week and it's not the worst yet," said Yeo Hang Pin, chairman of the Association of Vegetable Retailers in Johor Baru. Citizens relying on roadside food stalls are sure to get meager service or even none at all, because their workers have ret