An Englishman, Irishman and Scotsman walk into a bar and approach the barman.
As they are in London, an extremely multi-ethnic city, with many persons from throughout the United Kingdom relocating there, it is actually a common occurrence.
However, in this joke, an original joke, the punchline is that the Irishman orders a red wine, the Englishman a Guinness and.....the Scotsman a Coca-Cola.
You see the twist is that the Irishman is not drinking the Guinness yet the Englishman is and despite the majority of Scottish people being alcoholics, this gentleman is actually teetotal and has abstained from alcohol for many, many years.
Ever since he mowed down some gypsies in a drunk driving incident......