On my old Austin Healey the cut off switch (mounted in the trunk next to the battery) was on the positive terminal side.
Oh, did I mention the postive terminal was also 'earth ground' to frame?
Lucas wiring, apparently doesn't know one side from the other.
Friend of mine (Backdraft car) has his cut off right next to the drivers seat on the back panel. Once he accidently hit the switch while entering the car, putting on his seat belts or whatever. Of course it wouldn't start and the 'green flag' was getting ready to drop. PANIC TIME!!! Took us a few minutes to figure out what the heck happened.
