Golly, I'm sorry I spilled that mustard on your jacket, please let me help you clean it off.
Mistakes happen, but this was no mistake. You've just been distracted long enough for someone to lift your wallet or steal your briefcase or luggage. Unfortunately, by the time you realize that, that helpful lady has vanished.
This really old scam is called The Mustard this form of it is fading into history. The Mustard is now played differently in a form that safer for the scammers and far more dangerous for you.
The Mustard remains a squeeze play, but its methods are electronic. Instead of lifting your wallet, they just steal your PIN number.
This scam is run a number of ways, so don't be a sucker. Listen in and find out who has just taken your ATM PIN.