Warren Buffett often says that the stock market is here to serve you, and not instruct you. That’s great advice. Yet, it’s rare to find an investor who will confess to being led by the nose in the stock market. No one wants to admit that they can be swayed by the day-to-day movements of share prices. Instead, you’re more likely to find investors who believe the market is serving them, and not instructing them. A dose of humility is in order. The stock market’s siren song comes in many forms, and if it is misread, it can lead you down the wrong path. Are you being instructed by falling share prices?  When a prominent stock falls by 20 per cent or more in a single day, it becomes the centre of attention. Major declines often occur on the heels of unfavourable news or business results which fall short of expectations. For many investors, the panicked response signals an opportunity....