content: We have these scanners at our grocery store. I went through scanned my stuff and just completely forgot to pay because my mind was on something else. I was almost out the door ad the lady watching yelled for me to come back, obviously because another customer had rolled up and called her over to say the payment was pending.  I was fairly embarrassed at the time but later I thought if I hadn't scanned those items then I could've just walked out and be fine. The attendant wasn't paying attention at all. I know its an app here but I just wanted to share that.