More rules than Magic The Gathering.
Is this one of those things where people (not Scotch, who I'm finding very helpful here, I'm talking about people in general) can say they're better than other people because they know the difference between various specific types of drinks based on where the grapes were smashed, what day of the week they were smashed, what color the grapes were, what heritage the person who smashed them is, how many toes they had and what religion their neighbor is?
*takes sip* "This is a '79 Jack Beam Jaegar-Ouzo made by the Doomkof family in Saarland on the German-French border after being soaked between wooden pallets. You didn't know that? Hmph! Peasant..."
But more importantly, this reminds me of a joke.
A man walks into a bar and demands, "Give me a 12 year old scotch and make it quick!" The bartender thinks, "Who is this asshole?" and hands him a 3 year old scotch. The man takes a sip, spits it out and yells, "This is a 3 year old scotch goddammit. I asked for a 12 year old scotch." The bartender gives him a 7 year old scotch. The man takes a sip, spits it out and yells, "This is a 7 year old scotch. I asked for a 12 year old scotch! Now give me a fuckin' 12 year old scotch goddammit." So the bartender gives him a 12 year old scotch. The man takes a sip and says, "It's about fuckin' time. Now that's good shit." Another man at the bar overhears this and hands the guy a shot glass, saying, "Here, try this." The man takes a sip, spits it out and yells, "This tastes like piss!!" The second man says, "It is! How old am I?"