I don't blame you. One time, I saw some kids slowly driving up my street (I'm at the end of a dead end- theres a brickwall after my driveway), and stop a few houses down.. Then they started sneaking towrds my car.. And as soon as they went to open my car door- I let Lady, my pit/boxer (looks like a pure pit though) out the front door. My husky wouldent have done anything- but Lady does NOT like intruders! Of course, she scared the hell outta them and chased them to their car (don't worry- she's really a pansy. she wouldent bite- just barks like she'll eat you lol), then they never came back. lol.
Oh, just to add- cops wouldent have been fast enough, and I am one SMALL girl, and they were three BIG teenage boys, and a girl- so I wasnt going out there!!