A old man on a moped approaches a fancy car stopped at a traffic light. Pulling along side he asks the driver, "What kind of car is this?" The driver, a dashing young doctor, replies, "Why, old man, this is a Ferrari. It costs $350,000 and goes nearly 220 mph. Nice, huh?" The old man leans over, pokes his head in the driver's window and looks around. Unimpressed, he says, "Ah, I think I'll stick to my moped." Somewhat put off, the young doctor mashes the accelerator the instant the light turns green, intent on showing the old man just what his firebrand can do. Within an instant he's doing better than 70 mph. Looking in the rear view mirror with a smirk on his face, he notices something fast approaching. To his amazement, he sees it's the old man on his moped. Undaunted, the doctor stands on the gas pedal and laughs as he zooms to nearly 150 mph. Once again, however, he's sees in his mirror what is at first a black dot, but then becomes the same old man on the moped, screaming madly as he approaches the car. Angry now, the doctor pushes his Ferrari to the limits. 200...210...220 mph, barely able to see beyond the blur of the passing landscape. And yet again, here comes the old man. Flying along behind him, ever-approaching, until he slams into the rear of the car. The doctor brings the Ferrari to a stop and jumps out, fearful of what might have happened to the old man. He sees the man is banged up and frantically asks, "Sir? Are you hurt? I'm a doctor, what can I do?" Wearily, the old man whispers, "You can start by unhooking my suspenders from your side view mirror!"