I DETEST going into Sainsbury's now, and each time I go into one of their stores, they ask to see my receipt, if I have a bag of groceries, that I purchased in another store. I always accommodate and show them my receipt, and everything I purchase from other stores, such as much cheaper stores like Lidl and Waitrose, is 100% verified by my receipts. This happened again yesterday in Sainsbury's at Wallington, and there was a Chinese girl serving me at the checkout. She asked to see my receipt, but only after a very incredibly rude male customer who was standing behind me, asked me if I was going to put my goods from my bag, onto the checkout. I asked him if he were a store detective working for Sainsbury's supermarket, and he replied that he was not, so I asked him not to cross examine me. It was then that the Chinese assistant asked to see my receipt. I gladly showed her, as I'd just been in Lidl in Wallington, as I had a voucher to spend there, and people do tend to multi-shop in the 21st century. Besides which, I work for the emergency services, and in the Police, Fire Brigade and NHS, you are police checked and have to have an enhanced DBS, so don't usually have a criminal record,or are prone to going round supermarkets, or any other retail establishments for that matter, on a thieving spree!!! Anyhow, she immediately verified that all was above board, and I would have even been happy to empty my bag of groceries onto the conveyer belt, that I'd just purchased via Lidl, so that we could tick each one off from the Lidl receipt, as I replaced them back in my bag. But, I feel this would have held up the queue for a good 10 minutes, which would not be beneficial. Therefore, for anyone who is reading this review and is utterly digusted, as I am, not least to the rude behaviour of the middle aged British man who seemed (like all British people unfortunately feel they HAVE to do), which is to poke his nose into other people's business, where it simply isn't called for!!!, but also the cash assistant, who, through his appalling behaviour, seemed to be backing him up on it. You will no doubt be of the idea that I now will NEVER EVER set foot into another Sainsbury's supermarket as long as I live and breath, out of principle, and even if I have to starve.