A man walks into a bar and asks the bartender for a shot of 15 year old scotch. The bartender didn't feel like going all the way down to the cellar to get it, so he poured him a shot of 5 year old scotch. the man takes the shot and says "Excuse me sir, but I believe I asked for 15 year old scotch, and you served me 5 year old scotch."

The bartender was impressed, but wanted to see if he how sharp this man's skills were, and poured him a shot of 10 year old scotch. The man takes the shot and starts to get a bit aggravated. "Are you deaf or something?", said the man, "I want a shot of 15 year old scotch! This is 10 years old!"

The bartender gives up, and walks down into the cellar to grab the 15 year old scotch. When he serves it, the man takes the shot and says "Finally, was that so hard?" a man beside him watched whole thing , hands him a glass and says "try this" the man takes the shot and says "Oh my god, this is piss!" the second man smiles and says "Yup, how old am I?"