You Are Guinness
You know beer well, and you'll only drink the best beers in the world.
Watered down beers disgust you, as do the people who drink them.
When you drink, you tend to become a bit of a know it all - especially about subjects you don't know well.
But your friends tolerate your drunken ways, because you introduce them to the best beers around.
Actually I am more likely to drink a Canadian beer, something on Tap. Guiness is a little thick for my taste (beer you have to chew?)
Hat tip to Susie