Steve B wrote:
She rings up two doors at $39 each. My wife and I make eye
contact, but don't say a word. We pay the girl, and then run like hell.

$320 worth of doors for $78 plus tax.

I remember many times from my childhood when my Dad corrected a
cashier's error or even went back to pay for something that was missed.
He would also say things like "ethics are what you do when nobody's
watching."

Your ethic is pretty clear here. Why not just go through the self-check
or put items in your pockets?

-kiwanda