Much smoke about nothing!

A man sees another leaning against the wall of a large building. The second man is puffing away, one cigarette after another.
The nonsmoker says, “Sir, I couldn`t help noticing how you chain smoke. How many packs do you smoke a day?”
“Four.”
“How long have you been smoking?”
“Thirty years.”
“That`s over six thousand packs. If you didn`t smoke, you could have saved enough money to buy this building.”
The smoker takes a deep puff and says, “Do you smoke?”
“Never.”
“Do you own this building?”
“No.”
“Well, I do.”