The Old Logic

Yesterday, I went to First Bank to use the ATM.
I got there and looked around, joined the long queue. A young lady came to meet me and asked how much I wanted to withdraw.

She said she over withdrew money; She was supposed to cash out 3k but mistakenly pressed 30k. She will give me 20k cash, I will transfer it to her account.

This is what shocked me; I have been standing in the queue for approximately 5mins and I never saw this lady around that ATM, she wasn’t in the queue, she never made any withdrawal. Which ATM did she use in getting the 30k?
I told her I will wait for my turn, she left my side, I asked the man in my front, did you see this lady around? I wanted to point her but the Lady had disappeared, I didn’t see her again.

I told the man what she said and he laughed and said it is an old logic. They come with fake naira notes claiming they mistakenly pressed and withdraw the wrong amount.

When you are in a hurry to leave the long queue, you transfer the money to them and they give you cash You leave happily thinking you have escaped long queue, go to wherever to buy something with the money and realize you were given fake money.

The man called it Old logic but what saved me was my keen observation, she looked so innocent and pretty, you won’t even suspect a thing.
I am sure someone out there is hearing about this stealing logic for the first time.
I had to post this because I am hearing it for the first time too o. It might help someone who doesn’t know this too.