[MargaretR]

Any retailer who pays rubbish wages will sometimes get landed with rubbish staff.
I have never heard of any like incident at Marks and Spencer where the staff are paid more and the competition for those jobs ensures a better standard of employee.
Cost cutting at Asda has resulted in poorer quality goods and staff.
You get what you pay for - cheap service and cheap food.
If that is what is needed in these days of recession, so be it.
Personally, I would rather pay more and eat less.
Supermarkets will continue to sell junk only if people are willing to buy it.