Of course, unpredictable things can happen. Stocks can go from boom to bust over-night, just as animal husbandry and food processing stocks have all fallen with the outbreak of hog foot-and-mouth disease. Investors must stay cool and not sell in a panic; that's the only way to protect oneself.
當然，天有不測風雲、「股」有旦夕禍福，最近豬瘟（豬口蹄疫）爆發，畜產股、食品股全面重挫，這時投資人保持冷靜，不要胡亂殺出，才是自保之道。