[__david__]

Discreet-ish. At least in my state the cashier had to pull out a book and make sure the constraints weren't violated. It's a slow process and when there's a line you can feel all the eyes on you.

[danielweber]

How recently? With software the register should take care of that automatically, just like knowing what things need what level of sales tax charged.

[__david__]

It happened to the person I was shopping with in California in 2012 or perhaps 2011.

[viewer5]

Really? That's interesting, that never happened to me.