What to do during robbery at ATM?

Please remember this method in case you were threatened:

WHEN A THIEF FORCES YOU TO TAKE MONEY FROM THE ATM,

DO NOT ARGUE OR RESIST, YOU MIGHT NOT KNOW WHAT HE/SHE MIGHT DO TO YOU.

WHAT YOU SHOULD DO IS TO PUNCH YOUR PIN IN THE REVERSE WAY, I.E.;

IF YOUR PIN IS 1254, THEN YOU PUNCH 4521.

THE MOMENT YOU PUNCH IN THE REVERSE FORM, THE MONEY WILL COME OUT,

BUT....IT WILL BE STUCK INTO THE MACHINE HALF WAY OUT

AND IT WILL AT THE SAME TIME ALERT THE POLICE WITHOUT THE NOTICE OF THE THIEF.

EVERY ATM HAS IT, IT IS SPECIALLY MADE TO SIGNIFY DANGER AND HELP.

NOT EVERYONE IS AWARE OF THIS.

I am not sure that this will work but just trying to share!
Who knows, one day you will need it.