What happens when you pump a whopping 10,000 volts of juice into a helpless watermelon? Instant watermelon salad, that's what. You'll just need to gather up the pieces from the blast radius.
Is this a waste of both electricity and perfectly good watermelons? Maybe. But if it was done in the name of science, was it really a waste? What about if it was just done in the name of seeing fun explosions?