Yesterday, five large department stores in the towns of Lindsay and Whitby, Ontario, Canada had to temporarily stop ringing up customers because every item scanned at the register showed up as Mr. Potato Head.
"A point of sale downloading error caused item names to appear incorrectly," said Cathy Kurzbock, manager of external communications for department store chain Canadian Tire. "It has since been corrected and the stores are operating normally."
Apparently, they don't suspect this was a prank but, well, I wouldn't be so sure.