Oh, I dunno ..... I always thought it was kind of fun running a country road at 2AM going 110 or so when somebody at the Lucas Electric factory got out their corporate Quija Board and summoned the spirit that turned off your headlights.
(My ride was an Austin Healy, but the wiring was still the same ultra reliable stuff that was in the Jag.)
I had a ‘67 3000 Mk. III and a ‘62 MGA. So, yes, I have met the Prince of Darkness!
I have a ‘63 Austin Healy mach 3000 that’s pretty sweet.