A Chicago salesman was about to check into a St. Louis hotel when he noticed a very charming woman staring admiringly at him. He walked over and spoke with her for a few minutes, then returned to the front desk, where they checked in as Mr. and Mrs. After a very pleasurable three-day stay, the man approached the front desk and told the clerk he was checking out. In a few minutes, he was handed a bill for $2500. "There must be some mistake," the salesman said. "I've been here for only three days." "Yes, sir," the clerk replied. "But your wife has been here a month and a half."