Shopper Sharlene Denham last week wasted hours on the phone at the North Lynn Farmfoods answering increasingly odd questions supposedly to win cash.

Neither Denham nor the store manager suspected a hoax, even when she was told to use him as a footstool and call him “slave”. It later turned out the mystery caller had pranked another store in the same way. Farmfoods gave Denham £200 for her trouble. It’s still unclear whether the store manager put in another stint as her footstool by way of apology.