Two men are out hiking when all of a sudden a bear starts to chase them.
They decide to climb a tree, but the bear follows them.
The first hiker gets his sneakers out of his backpack and starts to put them on.
The second hiker, slightly confused says, "what are you doing?"
The first responds, "I figure when the bear gets close to us, we'll have to jump down and make a run for it."
"Are you crazy," the other responds, "don't you know you can't outrun a bear?"
"I don't have to outrun the bear... I only have to outrun you!" he says.