Three men go on a trip to the desert. One is smart, one is average, and the third is Pastor Tim. The smart guy says, "I brought water, so we won't go thirsty." The average guy says, "I brought food, so we won't go hungry." Then, they ask Pastor Tim what he brought, and Tim says, "I brought this car window, so we can roll it down, if we get hot."
But wait, there's more!
As it turns out, the window Pastor Tim brought came from a stolen car. The three men are arrested, taken to jail, and put in separate cells. Somehow, the smart guy manages to get hold of the keys, and unlocks each of their cells. They then proceed to escaping through a window.
The smart guy goes first, and sees a wall blocking his escape route. He also sees a tall tree next to the wall, which he starts climbing, figuring this was the only way to get past the wall. As the smart guy reaches the top of the wall, a guard on the other side hears him.