Fridays Joke- Know your scotch

Being the last day of the SOTR i'd thought I should keep the joke topical even though I couldn't make it up this year. Enjoy! A dude walks into a bar and says to the bartender : "I want a 12 years old scotch, and don't try to fool me because I can tell the difference."
The bartender is skeptical and decides to try to trick the man with a 3 year old scotch on the rocks.
The man takes a sip, scowls and says : "Hey - Bartender, this crap is 3 years old. - I told you that I wanted a 12 years old scotch."
The bartender won't give and tries once more this time with a 6 year scotch.
The man takes a sip, grimaces and says : "Bartender, I do not want 6 years old scotch like this filth. Gi'me a 12-years old scotch on the rocks or ill leave !"
Impressed, the bartender gives him the 12-year scotch on the house, the man takes a sip and sighs,
"Ah, now that's the real thing. "
A disgusting, ugly, grimy, stinking drunk has been watching all this with great interest. He stumbles over and sets a glass down in front of the man and says. :
"Hey, I think that's really far out what you can do. Try this one."...
The man takes a sip and immediately spits out the liquid and cries, "Yechhh! This stuff tastes like piss!"
The drunk's eyes light up, "Yeah sure, but how old am I ?"