That was easy.
A bank robber behind the wheel of his car on Tuesday sent a note through a vacuum tube to the teller at the drive-through window at a branch of Chicago's LaSalle Bank and the teller obliged, returning an undisclosed amount of cash, police said.
The exchange was completed through the bank's pneumatic tube communications system, in which canisters are passed back and forth between motorist and teller.
The FBI said it was investigating the drive-through theft.
The bank is owned by ABN AMRO Holding NV.