Two weeks later, the man walked through the bank's doors, and asked to settle up his loan and get his car back. "That will be $5,000 in principal, and $15.40 in interest", the loan officer said. The man wrote out a check and started to walk away.
"Wait sir", the loan officer said, "while you were gone, I found out you are a millionaire. Why in the world would you need to borrow $5,000?"
The man smiled. "Where else could I park my Rolls-Royce in Manhattan for two weeks and pay only $15.40?"
Attribution unknown