[Closed] Wouldn't it be cheaper

There's some cracking filly on the tills at my local Waitrose, long may they continue!

Hate the self serve machines.  Why should I have to obey some plastic junk that can't understand that I have a rucksack not a plastic bag?  Click the 'I've brought my own bag' icon, put it on the scales and all hell breaks loose!

I seem to remember Morrisons saying they were going to get rid of them after some campaign or another a few years ago.  They seem to be reproducing in my local store.  Well, the new offspring are there but they're always broken with a plastic bag on their heads.  Do new machines have to go through their teenage years before they work properly??