An older woman was ahead of me in the line, but it soon became clear that the ATM could not give her the cash she needed.
I heard her mutter "why will this machine not work for me?"
I offered my help, which she readily accepted..
Thereupon I asked her to re-insert her ATM card (which again did not work).
As this I began to grin, for with all the grace I could muster, I had noticed something.unusual
So I said:
"Ma'am you are inserting your driving licence, not your ATM card"
That indeed was the case.
The woman was entirely embarrassed by her mistake,
But she was able to relax (I hope) as I assured her that these human errors are very common,