The stock market can be richly rewarding if you select the right stocks at the right time. Isn’t it? However, it is also a brutal place that has the potential to wipe off investors capital as well. In this article, we touch base on key lessons that past failures of companies have taught us. Be it Satyam, ADAG group stocks, Manpasand Beverages, Jet Airways, Kingfisher Airlines, or struggling companies like DHFL, Yes Bank and Jain Irrigation. We have also put links (highlighted words) to related articles of the lesson.