Louis Brandeis, Mechanics Universal Joint Company v…
“ We have no occasion to decide whether a stranger would be liable as for a preference, if, without suggestion from any officer or employee of the bank, he withdrew his deposit because of rumor or suspicion of insolvency. It is true that ordinarily a payment made by a bank to a depositor in the usual course of business is not recoverable, even though the bank was then clearly insolvent. ”
