A man orders an expensive, 12 year old whiskey.

A man orders an expensive 12 year old whiskey. The bartender has only one bottle left of the 12 year old whiskey, and doesn't want to open it. Instead, he pours the man a 4 year old whiskey, thinking that the man won't know the difference.

The drink is passed to the man and he takes a drink, but he spits it out immediately.

"This is at most, a four year old whiskey. I asked for twelve year old whiskey!"

The bartender apologises for his "mistake," but he still doesn't want to open his expensive whiskey. So he pours the man a glass of 8 year old whiskey, and gives him the glass.

The man takes another drink, and spits it back out again.

"That's closer," the man says, "but it's not the twelve year old whiskey that I wanted."

The bartender is stunned. He apologises once more and realises that this man can taste the difference, so there's no fooling him. At last, the bartender gives in, opens up the expensive 12 year old whiskey, and pours a glass.

The man takes a drink, swallows it, and smiles.

"Now that's the ticket," he says, "There's nothing like 12 year old whiskey."

Now I'm across the bar from this amazing man, and I go over to him and say, "Excuse me sir, but I couldn't help notice that little spectacle there, with you telling the ages and whatnot. Perhaps you'd like to try a bit of mine?"

I offer the man my glass, and he takes it. He takes a large drink, and immediately spits it out and screams, "UUUUGGHH! THAT TASTES LIKE PISS!"

And I say, "Yes, but how old am I?"