A desert traveler, nearly delirious from thirst, comes across an old farm pump near a dry gulch. The traveler madly pumps the handle, hoping against hope for the sound of water down below. But the only noise that comes up the pipe is the creaking and clanking of the dry, rusty iron plunger. In despair, the traveler is about to move on when a glint of sunlight is reflected from something shiny under a nearby rock. It is a half-gallon bottle filled with clear, pure water. Frantically, the traveler struggles to open the container and drink its precious contents only to find a handwritten note attached to the stopper.
"Dear fellow traveler," the note begins, "DON'T DRINK THIS WATER!" Puzzled, and now even more thirsty than ever, the traveler reads on. "Though this pump looks abandoned and dry, there is water down below - all the cool, refreshing water you want. But to get it, you must pour all the water in this bottle down the pipe to prime the pump. You will need all the water to get that old pump primed, so don't drink any of it. Have faith in these words and trust in that rusty pump. Pour the water down the pipe, then drink all the water you can hold, wash your face and cool your feet. Just leave the bottle filled for others. Thank you kindly, Desert Pete."