No, I'm not spending an hour on verification; what are you, a government contractor or something?
I've already got my phone out, because that's where I stick my shopping list sticky note. I already watch prices and frequently catch mistakes at the till. But I trust that the paper price tag won't change, so I just tell the cashier their system overcharged me and they fix it. Occasionally I'm hit with an unexpectedly large bill and spend an extra 30 seconds or so to figure out what's going on (the answer is usually cheese).
But if they change to electronic price tags, you bet your ass I'm gonna spend that extra few seconds per item so I have evidence on hand.
I've already got my phone out, because that's where I stick my shopping list sticky note. I already watch prices and frequently catch mistakes at the till. But I trust that the paper price tag won't change, so I just tell the cashier their system overcharged me and they fix it. Occasionally I'm hit with an unexpectedly large bill and spend an extra 30 seconds or so to figure out what's going on (the answer is usually cheese).
But if they change to electronic price tags, you bet your ass I'm gonna spend that extra few seconds per item so I have evidence on hand.