atm

I have a friend who always has large sums of money in his account and is fearful of being ****** by the atm or withdrawing under duress. I told all he has to do is enter his pin in reverse and the bank will be notified that something is wrong. He didn't believe me and we headed to the back for clarity and the floor assistant didn't know anything I ask to speak to the manager and she was clueless and laughed at me which was embarrassing and she was extremely ******** her name is Portia. I doubt if that is even her name.