Dysentery roulette

The health advisories I read before leaving all warn strongly of avoiding the local water supply. Of course, this is nearly impossible -- dishes are washed in water, food prep staff washes their hands before touching the food (you hope), etc. So while its easy to say "don't drink the water", in reality it is pretty hard not to. So every time I eat something, I am playing a game of "dysentery roulette" -- it might be yummy, it might make me sick. Kind of makes everything just a little more exciting.