After tasting it, the young man berates the steward.
"This is a 1992 vintage from the Diamond Creek vineyard in the Mayacamas range. Please bring me what I ordered."
Watching from the bar, an old drunk comes up to the table with a glass in his hand and says, "Can you tell me what this is?"
Winking at his date, the young man sips from the drunk's glass.
"Christ, this tastes like urine!" he exclaims, spitting it out.
"Yeah," says the drunk, "but what year?"