When Tina Sorg first saw the robot rolling through her Giant supermarket in Harrisburg, Pennsylvania, she said to herself, "That thing is a little weird." Programmed to detect spills and debris in the aisles, the robot looked like an inkjet printer with a long neck.
"It needed personality," said Ms Sorg, 55, who manages the store's beer and wine department. So, during one overnight shift, she went out to a nearby arts and craft store, brought back a large pair of googly eyes and, when no one was looking, affixed them on the top of the robot.
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