Three guys were walking through the desert. All of them were thirsty, tired, and hot. All of the sudden, one shouts that he sees a broken down car not too far ahead of them. All three men race to the car and the first guy pops the hood and grabs the radiator.
“Whenever I get thirsty,” he tells the other two, “I’ll just take a sip from this.”
The second man runs and pulls a seat from the front and proudly declares, “whenever I get too tired, I’ll just throw this on the ground and sit on it.”
With some effort, the third guy pulls the car’s door right off and begins to carry it with him. The other two guys, confused, asked him, “What are you going to do with that?”
The third guy replied: “If I get too hot, I’ll just roll down the window.”