How does it work? I think that it only affects you when you're moving, but how much do you have to move to get thirsty? Is it luck-based? Does it matter the time of day?
It seems like whether it's day or night matters, but I'm not sure. In my first town, I went out into and came back from the World Beyond in the day and I got thirsty, but in my current town I went out in the night, scavenged all day, and came back in in the night and I didn't get thirsty. Does moving at night really make you get thirsty faster, or is it just luck/me remembering wrong?
Any other info on how getting thirsty works would be appreciated too.