i'll paypal the cash to pay for the booze i love those kinda stories
Ahem. According to Wikipedia: "Sodium reacts exothermically with water."
Wikipedia doesn't do the process justice by calling it merely "exothermic".
http://www.youtube.com/watch?v=JD85OUkEKKw See the small amounts they were using? Theoretically, imagine a chunk the size of a loaf of bread going into a pond.
As for thermite... Well... ahem. Theoretically, when making thermite, you want to be sober. If you are not sober, you might add too much of one ingredient. So you pour in another ingredient to the appropriate level. But you poured too much of that in, so you pour in the other to "level it off". Repeat about... 30 times. Theoretically.