Well you can put fruit and junk with an electric current and BOOM. Se what happens, the myth is that an watermelon or a potato will have a bigger explosion because the watermelon is just a lot of water and water conducts electricity. the potato im not sure why people think it will also have a bigger explosion. I guess it because of the potato clock thing. So The Myth Busters get a bunch of fruit and run an electrical current threw it.