Something that car thieves should have to consider, not car owners.
No I'm not suggesting you kill someone over your car, but I'm not convinced that thieves should have the protection of the law like they do.
Most folk don't have full coverage insurance on their cars and theft of an uninsured car can be financially devastating to some folk and as such getting caught stealing a car should also be devastating.
Once upon a time we hung horse thieves. Just sayin'
Also being armed while checking on your car is not so you can kill someone trying to steal it, its for defending yourself if stumble across a thief and he takes umbrage at your accusations.