Re: Then don't drink soda, Pop!
McDonald's also has iced tea, which I usually drink at restaurants and fast-food joints. If unsweetened, it gives the boring water some flavor. (And, depending upon the water supply, may make the water drinkable. I've been places where the water is just dreadful.)
"Beware of bugs in the above code; I have only proved it correct, not tried it."
-- Donald Knuth