I had a bit of bad service with a young supermarket checkout guy the other day couldn't give a ****** about packing the stuff just jamming it in the bags no smile no nothing .I said " They didn't send you to a good packing school did they mate?" he didn't like it and made no reply just a stone face .One of the women there does the same but largely service is pretty good and polite and done with a smile or a friendly word..