What's wrong with some people? Why would he film himself acting, unprovoked, like an absolute tool to another person and then post it for the world to see? I guess, like the fireworks video the other week, it's just those lovable cheeky scousers having a laugh so it's OK.
Why was Vieira even there though? Final whistle goes, he's already next to the tunnel, yet when the fans come on he walks 50 yards onto the pitch.