MM first two posts reminded me of a real incident that happened to me many, many years ago when I worked in an electronics store in a mall.
Guy bought a digital clock radio, back in the day when digital meant white numerals on a skewer that turned like a rotisserie and the numbers flipped over every minute, none of this high falutin' LED/LCD stuff back then, thank you very much.
A couple days later he comes back, shredded box in hand complaining there was no clock on his clock radio. I lifted the unit from the box, looked at it and said, "Yes, there is." I then turned the radio around so the front of the radio was facing him.
He left the store rather sheepishly.