Christopher Baird, 18, of Finstown, who has admitted assault and attempted robbery, tried to steal from the till at knife point from Baikie's Stores on February 18.
CCTV shows how Euan Brown, the shop's till worker, hit him on the head with a sticky tape dispenser.
Startled, Baird ran from the shop.
Baird's sentence was deferred at Kirkwall Sheriff Court for background reports and he was remanded in custody.
A sticky tape dispenser similar to the one used to foil the robbery
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