I’ve known this for decades. I always watch them ring up every single item. I’ve even caught them double scanning stuff and missing stuff.
I wouldn’t mind them missing the scanner once in a while... but I would probably tell them... I am just too honest for my own good
I bought my grand son a t shirt with a pro wrestler on it, which he dearly loves. We got it at W-M, along with some other things. When we got home I noticed that it hadn't been scanned.
I told him that we had to go back and pay for it. He asked me if it would be alright to wear it back to the store, I told him ok but leave the price tag on it. They scanned the tag while the shirt was on him. He was proud of that shirt, tag and all.