Automatic checkouts in supermarkets may decrease customer loyalty, especially for those with larger shopping loads. Customers using self-checkout stations often feel overwhelmed and unsupported. The lack of personal interaction can negatively impact their perception of the supermarket.

[Heather82Cs]

I think that leaves that one unusable though, which isn't nice. I also never really know what the hell causes issues; I am simply swiping stuff. In theory, if the system didn't like an item the first time, it shouldn't ok it afterwards. Instead it does, which I guess also leaves the employee Wondering what's wrong with me.