Three men get a job together, but it’s very far away. In order to commute to their job they have to drive through the desert. One day, while commuting their car breaks down. They decide to get out and start walking for help. While walking, the first man shouts “wait a second!” and runs back to the car. He brings back the car radiator. Man number three days “why’d you do that?” Man number one responds “geez you gotta smarten up. There’s no water here in the desert. We can drink this if we need to.” They walk a bit farther and man number two shouts “wait!” and does the same, he runs back to the car. He brings back several mirrors from the car. Man number three says “what are the mirrors for.” Man two responds “you really need to smarten up. We can use these to reflect sun and signal any planes that fly over us that we need help.” They walk a little more and man number three shouts “wait!” and runs back to the car. He brings back one of the doors to the car. Both other men look at him confused and ask what the door is for. Man number three says “wow so I need to smarten up?! You guys are dumb. We’re in the desert. When it gets cold at night we can close the window!” (Heard this joke ages ago and it was more geared toward countries so I took that part out to be less offensive)