This is the bizarre moment an amputee beats a store keeper senseless with his prosthetic leg after being accused of stealing beer.

The freaky footage, from a CCTV camera in Murino, Leningrad Oblast, Russia, on 5th May, begins with the two men arguing heatedly as the amputee swigs from a can.

Then it all kicks off as the customer spits at clerk, tears off his fake leg and begins battering him around the head with it.

Hopping on one leg with amazing nimbleness, the shopper lashes out again and again catching the clerk around the head with the boot on his prosthesis as the clip ends.

The clip later surfaced on the social media platform Telegram, but it is unclear if police are investigating.

The identity of the one-legged man has not been released.

(Michael Leidig/newsX)