There’s a Mythbusters episode that covers this... what got this guy was physically coming into contact with the 3rd rail when he fell on it....
MONTESANO, Wash. (AP) – Authorities believe a Washington man was killed by accidentally urinating on a downed power line after a car crash.
Grays Harbor County sheriff’s Deputy Dave Pimentel (PIM’-en-tel) said Monday 50-year-old Roy Messenger was not seriously hurt after he collided with a power pole Friday and called a relative to pull his car from a ditch.
However, family members found Messenger electrocuted when they arrived.
Pimentel says Messenger apparently urinated into a roadside ditch but didn’t see the live wire. The urine stream likely served as a conductor, allowing the electricity to reach his body.
Pimentel says there will be an autopsy but burn marks indicated the way the electricity traveled through Messenger’s body.