Two campers are walking through the woods when a huge brown bear suddenly appears in the clearing about 50 feet in front of them. The bear sees the campers and begins to head toward them. The first guy drops his backpack, digs out a pair of sneakers, and frantically¹ begins to put them on.

The second guy says, "What are you doing? Sneakers won't help you outrun that bear."

"I don't need to outrun the bear," the first guy says, "I just need to outrun you."

两个人外出野营。就在他们朝一处树林走去的时候，突然看见在距离他们大约50英尺的一片开阔地上有一头大灰熊。大灰熊看见他们了，开始朝他们逼来。第一个人赶紧扔下背包，取出一双运动鞋，狂乱地穿了起来。第二个人见状，说：“你干吗呢？你就是穿上运动鞋也跑不过大灰熊的呀。”第一个人说：“我不必比大灰熊跑得快，我只需要比你跑得快就行了。”