I got sent this ages ago... I do not know if it is real or not. Mine was.
Old lady shopping.
"That will be £x.y pence, please"
"May I use my card?"
"Yes, of course, it goes in here. Thank you"
In goes the card.
"Now your PIN"
"What?"
"Your PIN, to authorise payment. I need your PIN"
"But I don't have a pin"
"It should have come with your card"
Looks in bag
"I am sorry dear, I do not have a pin"
"It's a four digit secret number. The bank should have sent it separately"
"No, I do not think so, and if it is a secret I could not possibly know it"
Sigh.
"Well without a PIN you cannot use your card"
"Oh dear, this is a problem. I can use cash?"
"Yes, of course"
"Then I'll have £30 cash back, I have seen people do that. You do do cash back?"
"Well yes, but I would need your PIN for it to work"
.......