Funny that you should mention this and Morrisons. Late last year we bought two packaged fish products from our local Morrisons, and on arrival home found both same product to be a day pass use by date. Nobody had noticed this.
Another incident last year was at Asda. Female shelf stacker had just removed some items off a shelf and left them on a trolley, as she had been called away. Another assistant came along and commenced putting said items back on the shelf. It was then noticed that the use by date had just expired.Whoops?.
Not forgetting Tesco. Again last year, our local Tesco was selling fresh chickens on the must be sold immediately/that day Reduced Counter. On the special reduced price label- Was £5.00 now £4.50. Around the next aisle, fresh chickens with a few extra 'fresh' days left on label- £5.00 each two for £9.00.