Who Runs Faster?

Two guys were walking through the jungle. All of a sudden, a tiger appeared from a distance, running toward them. One of the guys took out a pair of Nikes from his bag and started to put them on. The other guy, with a surprised look on his face, exclaimed, "Do you think you will run faster than the tiger with those?" His friend replied, "I don't have to outrun it, I just have to run faster than you."