Oscar drove his brand new Mercedes to his favorite sporting goods store. He parked it outside and went in to do a little perusing with Jim, his regular salesman. As Oscar walked into the store, Jim happily greeted him. But he requested to look around the store today before he needs his help. Jim obliged and let him do his thing. Five minutes later, Jim came running up to him yelling, "Oscar! Oscar! I just saw someone driving off with your new Mercedes!"
Oscar panicked, "Did you try to stop him?"
"No," he said, "I did better than that! I got the license plate number!"