Drink Crush Cream Soda! =D
I actually poured some into a cup, waited for thirty minutes, and when I emptied the cup into the bottle again...
THE CUP WAS TINGED PINK WITH FUNGI ON IT
Not as bad as that, but still -- had to spend fifteen minutes washing the cup. XD
So as my personal advice, I say -- Say no to soft drinks...!
...Except Dew and Dr. Pepper.