A man is running a marathon, when he notices another runner wearing a new brand of shoe. As he continues running, he sees other runners wearing this new shoe. Each time he asks how they like the shoes. Excited by this new brand he has an idea. He sees a young woman with a laptop computer. Leaving the race, he asks her if he can use her computer. He goes to the Ameritrade web site and buys stock in the company that makes this new shoe. Happy, he returns to his race.