Hi, I'm requesting three packages of firewood and two of the food, you can have all the water.
Oh, how kind.  Why do you need so much water?
I don't need any of the water, just the firewood and some food.
Why do you need so much firewood?😮
I don't have a chainsaw or ax to cut any of my own.☹️
Oh, that would make things difficult!
I also have some family stopping by for a few hours and it would be rude to not have food for them or a fire for warmth.
I see.  So I get 3 waters and 1 food under your offer?
That's right.
OK.  I take that deal.  Thanks!🙂