World's oldest street fight?

A bizarre video has emerged online of two 70-somethings fighting on a busy street in the Chinese city of Shenyang, Liaoning Province.

The trouble started when the dog of the man in the brown overcoat bit the man in the orange jacket, who then beat the dog. This incensed the dog's owner and the two septuagenarians ended up grappling on the ground and then fighting a kind of duel with sticks. The dog's owner refused to let the matter drop and pursued his opponent through the streets before police eventually intervened to separate the two men.