So, there are accidents.... Home intruders usually do not wear "protective costumes" (although some wear "chalecos"... ) and if your dogs get to play with their bones you'll end up paying a lifelong pension to the criminals or their families. Nowadays you just don't get the old fashioned "ladron" any more. Bad 'tigueres' run about with 9mm guns and shoot and kill your highly trained dogs without hesitation. Guess, a 'viralata' barking is just as good to alarm you so you can get your artillery ready...