A red-head, a brunette, and a blonde went on a trip to the desert.
They each brought one item for survival.

The red-head brought water. The blonde asked, Why? The red-head
replied, To prevent us from dying of thirst.

The brunette brought food. The blonde asked, Why? The brunette
replied, To prevent us from dying of hunger.

The blonde brought a car door. The red-head and brunette asked,
Why? The blonde replied, To roll down the window if it gets hot.