Most of us believe banks are safe, right? But, as a financial entity, banks are far riskier than other companies as they are built on a sliver of capital, and thrive on making loans with customer deposits. On a capital of say Rs.12, a bank can raise deposits and lend up to Rs.100. If it loses Rs.6 of this Rs.112, the bank has lost 50% of its equity; and if it loses Rs.12, it’s time for the bank to shut down. The reason banks get into trouble is because bankers start believing and behaving as though they own all the capital, including customer deposits.