Mary Poppins has a classic scene, where the yelling of a kid sparks a run on the bank. Not entirely unrealistic, given how lost our faith is in the banking industry.
But I don't know much about banks--good thing pieces like this can clarify.
Of course, Mary Poppins reminds us of the fragility of commitment: "Pie Crust Promise: Easily Made, Easily Broken." Which suggests that we should be granting the banks nothing without strict oversight.