Anyone wired a self latching or other type of anti-theft kill switch ?

Wire the white wire of an electronic distributor fed MSD to a ground switch, that thing will never start. Give the MSD some time and it wont start either! Flame me......I had a Carter electric pump on my 65 back in the day and I had to turn it on manually. Forgot it and the car started sputtering 1/2 block down the road, hit it and it picked right back up.