A robber fled with just a single bottle of cleaning fluid after threatening staff at a Liverpool branch of Farmfoods.
The robber carried out the terrifying raid at Farmfoods on Walton Lane yesterday.
After walking into the supermarket at 6.30pm the man started bundling stock into a bag.
When confronted by staff he brandished a knife, police confirmed.
Undeterred, brave staff members tackled the man and retrieved the bag.
A spokesman said: "The man then grabbed a bottle of cleaning fluid and fled the shop in the direction of Rice Lane."
Police have now launched a witness appeal as they hunt for the knifeman.
The man is described as a white male, in his 30s, with thick blond hair. He was wearing a T-shirt, black pants and a blue cap.
CCTV enquiries are being carried out in the local area and an investigation is underway.
Anyone with information is asked to DM @MerPolCC, call 101 or contact Crimestoppers anonymously on 0800 555 111 quoting log 801 of 30th May.
