Reason #62,383 Why I Hate Superstore

Because when I tried to purchase a long distance calling card, the cashier scanned it in and then threw it on her till. After packing up my groceries, I asked her for the calling card. She circled a number on my receipt and said that was all I needed. I looked at the receipt and pointed out that she had circled the calling card's UPC number. I told her that I needed the card because it had a pin number on the back (that you have to scratch to uncover). She started to argue with me, but then decided to more or less throw the card in my general direction and mumbled something about "fine, take it if you want it". Why why why do I continue to shop there?