I went to the supermarket the other day but it was only a quick trip. I picked up three gallon of milk, nestle chocolate and dog food. I picked up some paper towels too and put them in the cart but when I was at the register I changed my mind. The lady at the register picked up her symbol barcode scanner to scan the paper towel but I told her not to. I realized that I still had some left at home, I did not go to the store for paper towels but for the milk and dog food. The lady just smiled at me and never said anything. I do not knew why I picked up the paper towel.