Water, water everywhere

Don’t you hate it when you’re incredibly thirsty, have no hope of getting a drink any time soon and you’re stuck outside in the pouring rain. No matter how long you keep your head tilted skywards and your mouth open not a drop of liquid manages to make it’s way down you throat.

If all the world were paper
And all the sea were ink,
If all the trees were bread and cheese
What would we do for drink?