There's a long and growing list of Bank of America's (NYSE:BAC) misdeeds one must wade through in order to determine which is the worst. But if anyone is qualified to do so, it would be Motley Fool contributor John Maxfield, author of the most comprehensive list of the bank's recent indiscretions that's widely available.

Since the financial crisis, the nation's second largest bank by assets has been accused of discriminating against women and minorities, rigging the municipal bond market, tipping the scales in ostensibly neutral arbitration forums, misleading investors about the financial health of Countrywide Financial and Merrill Lynch prior to their acquisitions, submitting fraudulent documents to courts in judicial foreclosure proceedings, misrepresenting the safety and liquidity of purportedly cash-like investment products, and underpaying employees in its Merrill Lynch division, among other things.

In the video below, however, John gives his rationale for why Bank of America's former policy of reordering debit-card transactions for the purpose of maximizing overdraft fees is far and away the most egregious moral and ethical infraction committed by the bank to date.

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