Reminds me of a time when I visited an ATM where the machine sucked in my card and encashed the amount and I ran to watch a movie with friends only to realize later that I didn't take my card.

The flow was flawed until the banks fixed it recently, now the card comes out of the machine first then the cash so that the customer doesn't forget to take the card.

However, I like the way you have written this article, you were mindful of these cases while writing it.