Didn't want to hijack this thread:
http://www.layonaraonline.com/forums/forums/thread-view.asp?tid=21748&posts=3#M136908Getting thirsty, to me anyway, feels very OOC at the moment. Thirst is: Message saying you are thirsty, half dozen clicks on your canteen (no matter that you were in the middle of doing prior to the message), refill canteens. Upping the weight of canteens will only hinder weak PCs and do nothing for stronger ones, in my opinion.
I think it is safe to assume that if you are in a town and are thirsty, you will dip some water from the well. I would suggest, then, that only out of town do you get thirsty. Other environmental aspects and activities altering this as well. Simply put, running across a desert will surely lead to massive thirst. One returning to a town with a well, your thirst is gone. Alternatively, thirst should disappear when I go to the well to fill my canteens for surely I'd drink some of the water if I was thirsty.
The system could be as simple as this: Add an adjustment to thirst/hunger on area transition trigger. Transitioning into the desert increases thirst dramatically (better have brought juice and water!), entering a mountainous forest bumps hunger (so much walking but probably a stream or two).
On another server, they put colored status bars that clearly showed your thirst and hunger.
Thirst: ||||||||||||||||||||
Hunger: ||||||||||||||||||||
This allows a more realistic "feeling" of your health.
Thanks for listening!