Either checks bounce, or some other office covers the shortage and the account is just overdrawn until paid back. There was a minor scandal about this in 1992.

Either checks bounce, or some other office covers the shortage and the account is just overdrawn until paid back. There was a minor scandal about this in 1992. https://en.wikipedia.org/wiki/House_banking_scandal https://en.wikipedia.org/wiki/House_banking_scandal