[ben174]

And how often do you stop your checkout clerk and tell them to stop scanning because you've exceeded N number of dollars? Once you've pulled your cart up to the checkout line, I'm betting you've most likely settled on what you want to buy.

[TeMPOraL]

I've seen people do just that often enough. They'll sometimes sort their items in order of descending importance, and ask to stop when the total exceeds some amount.

[x0]

I don't want to say the "p" word and spark a huge social justice flame war, but a lot of comments in this thread are so obviously speaking from a place of financial advantage.

In response to your comment in particular, yes, I have done that. Not often, but it has happened often enough, and only a few dollars each time. Do you think people whip out Excel and keep a running tally of every item in their carts?

[jshevek]

"A place of financial advantage" is a more specific and useful characterization, anyway.

[x0]

Agreed.