- You can see this from here, in this darkness!?
-- Yes. Can't you? ;)

- And what are you seeing?
-- They stopped for the night. Which is weird.

- Why weird?
-- They are supposed to have a night crew.

-- Go fetch the bag. We must seize this opportunity.
- What?

-- We need water. What is it that you don't understand? You drink more than a camel. And the nearest water depot is over 100 miles away.