Heroic passersby were filmed trying to stop a gang of phone muggers who had tried to rob a city worker in London yesterday.
A woman, who can be seen wearing a backpack in dramatic footage of the attack, chases not one but two of the men who are trying to escape on electric bikes.
And a motorbike courier, seen wearing a red jacket and black helmet in the clip, appears not to notice as the shorter of the two muggers slashes at him with a knife.
