walks my groceries home like a european
We do buy bulk as well, I’d say maybe 10% actually walks them home? I guess it depends greatly on the type and location of the store.
how often do you encounter scales on self checkouts?
Every store with self-checkout has them, usually there will be one scale before you actually use a register. It gives you a sticker with the weight/price barcode to scan yourself.
That’s even worse, like you said, selfish.