^ I thought it would be obvious, but yea try using a tazer(or broken, sparking wires, etc) in a small pool and tell me about it your still alive lol. Nor do I see a bunch of rocks destroying water, because the water would simply slip through the cracks and float up, heck that's how our purification system works(well partial of it.) Logical sense, even for ninjas, the new one would make much sense. Japanese do things backwards anyways.