"The acceptance of such gratuities by Naval
personnel under any circumstances is considered to be contrary to the customs and traditions of the Naval service. . . . Hereafter, if any such gratuity is received by a member of the Naval service, it is directed that the gratuity be returned to the donor with a statement that its acceptance is not permitted under existing Navy regulations."
I never had the opportunity to reject any such gesture of generosity but, being ignorant of the rule, would more than likely have kept it.