Context: 'Of course, it's always wise to bring things. We absolutely need water and some food. Water is critical though.' 'You got that right!  I just came from a three-day rugby tournament and I am totally dehydrated.  I hope they have enough at the site.  I also get the chills bigtime when I am dehydrated. That's how I know I am very dehydrated...' 'I'm good to give up firewood for more water and food.'
Utterance: 'Thanks!  You can have all the extra food. My pockets are jammed full of munchies.  But water is something it seems we both really need.'