A Blonde, a Brunette and a Redhead Take a Trip to the Desert and Can Only Bring one Item With Them While they are walking through the sand, the redhead says, ""I brought a jug of water! In case I get thirsty, I'll drink it."" She then looks at the brunette and asks her what she brought. The brunette says, ""I brought a protein bar with me. In case I get hungry, I'll eat it!"" She then turns to the blonde and notices that she's carrying a car door. She says, ""Why in the world would you bring a car door on a long walk through the desert?!"" The blonde replies, ""In case I get hot, I'll just roll down the window!""