Mythbusters "Peeing On 3rd Rail" Busted 17
n0tWorthy writes "The Mythbusters tested the myth that you could be electrocuted by peeing on the 3rd rail. The myth was 'busted' as the stream would be broken up due to distance and there wouldn't be a continuous path for the electrical current to follow. This seems to be refuted by a Monsanto, Washington man that was found electrocuted after urinating into a ditch that had a downed power line."
Re:Apples and Oranges (Score:5, Informative)
Depending on the power line, it's likely the line in TFA was at least 880 volts (what the lines running along the road in a residential area carry), and likely much more. Apparently, New York's subway only runs 625 (here [howstuffworks.com]) and DC's Metro trains run 750 V (here [wikipedia.org]). According to this [wikipedia.org], even a millimeter gap in a conducting stream (like someone's urine) would require around 3000 V to jump it. It's quite likely the pole this guy took down with his car was carrying at least 4000 V (here [wikipedia.org]).
So it looks like the Mythbusters were fine, as far as they went. An electric fence or third rail is very unlikely to be able to electrocute someone through a urine stream because of the air gaps, but there are plenty of electrical transmission lines easily capable of it.