My informant told me of a myth he heard when he was young that involved a candy called Pop Rocks. Pop Rocks are little pieces of hard candy that pop and crack when one puts them inside his or her mouth. He explained to me that it has been believed that if one was to eat these Pop Rocks and drink a soda, or any carbonated beverage, at the same time, the combination would make his or her stomach explode.
This is very interesting, because I remember hearing this myth when I was a kid; about nine or ten. My informant is from Riverside, California, and I was living in Encino, California, when I first heard it so it seems that this version has diffused throughout multiple areas. Whether there is actually any evidence that such a result could occur from this combination remains to be seen. Neither one of us, my informant nor myself, has ever witnessed the result of ingesting the combination in person, therefore I can safely say that this myth remains nothing more.