Any person or persons whose business it is, either as individuals, agents or officers of banks, to receive checks, drafts and demands, when the same are not entitled to days of grace, upon any bank, and who receives the same, for collection and retains the same for an unreasonable time, without making known to the drawee bank that such collections and demands are held for collection, in order to accumulate a large amount for the purpose of starting what is commonly called a “run” on such bank, or for the purpose of embarrassing such drawee bank shall be guilty of a misdemeanor.