wat should u do when forced by a robber to withdraw $ frm an ATM machine

If you should ever be forced by a robber to withdraw money from an ATMmachine, you can notify the police by entering your Pin # in reverse.For example if your pin number is 1234 then you would put in 4321.
The ATMrecognizes that your pin number is backwards from the ATM card you placedin the machine.The machine will still give you the money you requested, but unknown to therobber, the police will be immediately dispatched to help you.This information was recently broadcasted on TV and it states that it'sseldom used because people don't know it exists..
Please pass this along to everyone possible.