uh...around here, you better not leave your car running while you run inside a conveniance store. that would be a stoopid idea.

couldnt you also pull your main engine fuse? assuming its under the dash. IIRC no other fuse is as big and will take its place (this is just a suggestion ive heard before, dont know if its completely valid)
anyone ever see that electric steering wheel lock thingy? that jolts the isht out of you if you try to fcku with it?

you want security?? at least for car-jacking....South Africa has the craziest isht in the world!! they have the highest stolen car/car jacking rate of anywhere. they actually have devices where if someone tries to car jack you flames shoot out from under the car and torch the robber or steel bars pop out on a hinge and breaker the attackers legs. NO SIHT! i read about this in Car & Driver! I then asked a colleague who was from South Africa and he said in Johannesburg, or Joburg as they call it

,, women dont even dare stop in traffic. everyone runs red lights, they just slightly pause for a second.