Funny story. Selected an item at a conv. store clearly marked $1.99. It rang up $2.29. I showed the clerk the label. She said that's the date. We went back and forth a little with her insisting "that's just how they mark the date" and me insisting "that is a dollar sign and obviously a price, not a date."
That was the point at which I would have called for the Manager.
I don't suffer stupid clerks.