When I was attending tech school near Phoenix, AZ, I was headed home to SoCal for a weekend after working late into the night. I was headed west on I10 and came across an elderly couple broken down on the side of the freeway. It turns out that the secondary lead from their ignition coil to their distributor cap had corroded and burned in two, resulting in no spark to their rotor. I made a temporary coil wire out of a section of metal clothes hanger, which got their engine running, and followed then into Blythe, CA.