Walmart is the only place where I've been stopped during the checkout process because the camera system thinks I'm stealing.

I'm a nerd that tries to minmax my self checkout by putting items in the cart or handbasket in a manner conducive to efficient removal. I'll position the cart on my left, scanner in front, bags on right, and go as fast as the scanner will register the barcode and display the item on screen.

This works wonderfully everywhere else and I find it rather fun. I can count on Walmart to flag me at least once every trip (even though I slow down there for this reason), with the screen showing the flashing "POSSIBLE THEFT" message and video of me swiping an item quickly across the reader.

Maybe I should start parking the cart in the middle of the pathway like every other Walmart shopper and taking twenty seconds to dig every item out of the bottom of the cart before meandering around looking for where I set down the handheld scanner.