[bradlys]

Yeah - actually, it does happen often enough... I'd say it's much higher.

I know a lot of HN is full of people who don't pay attention to prices (for whatever reason - probably the inordinate amount of obscenely high incomes) - but it's really common outside of this crowd.

When I was poor - I thoroughly examined prices and only bought things that were on sale. If it rang up and wasn't the price that it said it was - I put it back. An example in my mind would be something like a block of cheese being $12 instead of $10. It's only $2 but it's also $2 that I was not willing to pay. Sometimes the staff at the store were not removing the old sale tags - thus it looked like it was on sale but it wasn't.

[daveFNbuck]

If it rings up for $12 when it's labeled as $10, you can usually get it for $10 if you tell someone it rang up wrong.

[smeyer]

In MA it's even better: if a grocery store item was labeled as $10 and rang up as $12, you'd just pay $2. The rule is that the item is free if it's less than $10 and $10 off if it's more than $10 (although this only applies to one item; you can't just go grab 20 of them).