Ms P gave me a short list of heavy items and a trolley to collect them. I quickly rounded them up...apart from the frozen mashed potato which I just couldn't find. I checked with the cashier who confirmed there was no such thing but when I returned to Ms P she was insistent and showed me the packaging to prove it. So off I went back to the shop. Unfortunately the cashier was correct and the frozen mashed potato has indeed been discontinued so I got the refrigerated alterative which Ms P was delighted with.