San and Dan were friends for more than 30 years. Their friendship had weathered innumerable arguments. However, Stan being the more intelligent one, had fared better than Dan in business, which was a constant source of irritation to Dan.

Stan was on his death bed with Dan hovering over him. Apparently in his last few moments, Stan called Dan close to him and said, "Dan, you know we've been friends for 30 years now. I have this one last wish which only you, my friend, can grant. Will you do it ?"

"Just tell me what it is Stan" said Dan, "and I'll do it happily. Anything for you, my friend."

"You know Dan, there's this bottle of the finest whisky which I have been saving for the last 15 years. I want you to pour it over my grave when I'm gone. Will you do it ?"

"Sure thing Stan," sai Dan, "But would you mind if I passed it through my kidneys first ?"