Partially sighted Yorkshire terrier freaks out at seeing his shadow for the first time

This Yorkshire terrier was so freaked out by his own shadow he tried to pick a fight with it.

Two-year-old Gus, a plucky, partially sighted Westie Yorkshire terrier, was filmed by bemused owner Carrie at home in Tain in the Scottish Highlands sniffing, barking and generally picking a fight with his shadow on a sunny day.