imagine if we are licensed to carry a gun, they show us parang, we point our gun at their lil bro and lets see if they dare to come even within 50m radius... if they do, we'll just shoot their legs and then blardy hantam them half dead and call the police... and gif him an evil laf as u do all that.. i guess potential to be thieves might be deterred... then again, they might even haf a gun with them in the near future, for all u know.... sigh.. only thing we can do is rub away... :(
the best is to be safe la.. lock the door whenever ur in the car.. get urself an immobilizer which immobilizes the car just in case they successfully jihack ur car... and also make sure no one is following u when ur goin home o when goin to a secluded area... :)