Hell, an old friend of mine accomplished that! Back in the mid-60's, he was living on a ranch with some acquiantences. His accomodations were in the loft of an old barn; roomy, private, and smelling of swet hay. But he did have a problem with rats. Being a techie, he wired up a TV power transformer (vacuum tube, ~450 volts), rectifier and large capacitor, to a baited wire grid, with return to ground. Actually worked pretty well, catching an occasional rodent. But one night, loaded on too many beers and other substances, he got up from his bed to take a leak. Too tired, wasted, and/or lazy to climb down the ladder, he pee'd in a corner of the loft. Sweaty feet on the bare boards, and a nice, conductive stream hitting the charged grid, he thought he was gonna die...