Tesco self-checkout just called me out by name and I'm offended

A self-checkout screen at Tesco supermarket displaying a Zebra brand tablet device with a greeting that reads 'Hello Wankbadger' with instructions to pick up the device. The screen shows blueberries above the text and is mounted in what appears to be a standard self-service checkout area with green and grey panels.
Extracted text:
TESCO
Hello Wankbadger.
Pick me up to get started
ZEBRA