Before going to Europe on business，a man drives his Rolls-Royce to a downtown New York City bank and asks for an immediate loan of $5，000．The loan officer，taken aback，requests collateral．“Well then，here are the keys to my Rolls-Royce，”the man says．The loan officer promptly has the car driven into the bank’s underground parking for safe keeping，and gives the man the $5，000．Two weeks later，the man walks through the bank’s doors and asks to settle up his loan and get his car back．“That will be $...
