Probably the worst manners in the world.
In that Carlsberg 'best nightclub' advert, when that geezer orders his drinks, he simply demands 'three pints of Carlsberg'. Not the slightest hint of a please, despite the fact that the various denizens of the nightclub are bending over backwards to make sure he has a good night. What a rude little bastard. He deserves to choke on his shitty lager.