I know redneck wire-fu all too well. I was riding my pimp 1979 Saab 900 one day when the key mechanism mechanically broke. No problem, pull up panel underneath e-brake(great place for a key!), re-wire. Hey, I watch Macgyver(this was in 1994) what could possibly go wrong? What went wrong is I twisted in the starter hot wire into my permanant bundle instead of the touch wire to start bundle. Several miles down the street I smell the error of my ways, starter motor still engaged. I was a poor student, made $170/week, no starter money. Lived in a hilly town, frove it with no starter for 3 months.
Then the was my Subaru XLT coupe headlight twist bundle, worked great until Mr. Inspection man got to it.
Then there was wiring phones in my new how circa 1996. You never know how much juice is in a phone line 'til you get one in each hand while standing barefoot on damp ground.