I watch pretty carefully when I am being rung up. We recently bought tile that was $17.00 a box. We bought 4 boxes. We also bought a box of mosaic tile trim, which is $66.00 a box. All the boxes are the same size, so she just scanned the top box 5 times. I told her about it, and she said ..".oh...don't worry about it. I get in trouble when I do this!" I said, I'm sorry, but I need the mosaic to appear on the receipt in case we decide to not use it, I need to be able to return it. She still didn't want to call a manager over to void the sale. Really wonder sometimes!