pretty handy if your constipated
What's missing is the resister wire on the horn relay. A 16 ohm 7" nichrome wire is attached across the horn relay between the two external tabs on the relay. The shock comes when the horn button is released.This wire is never included on after market harnesses.
Original 1946 Ford steering column, when I blow the horn with my arm in the window it shocks the crap out of me. I have checked all grounds.