There is a rumour that if you were attacked at a cash point by putting your pin in backwards you can still withdraw money but the police are summoned immediately, and some people are including this advice in safety plans for victims of abuse.
We’re sorry to tell you, THERE IS NO SUCH SYSTEM.
Sadly this does not exist, and if you think about it a system like this would be nearly impossible to create in partnership between the many different banks who all use unique security and computer operating systems.
If you try this the withdrawal will fail and you will more than likely just annoy your attacker/partner and escalate potential violence. A better option would be to comply and report the situation to the police (getting a crime number) and then your bank (who may return the lost funds depending on policies etc).
Keep safe, keep ACTing ON IT!8