Withdrawing money from an ATM

— Hi. I deposited $500 into my checking account, but when I tried to withdraw, the ATM machine outside wouldn't let me take it out.
— I see. When did you make the deposit?
— On Monday. It was a $500 check. Do you want the transaction number?
— No, I don't need it. If you deposited on Monday, the funds should be available to you by tomorrow afternoon. We place a three-day hold on all deposits, to make sure the money clears from the check-writer's bank.