Crasy ass dog

Tell me y im driving minding my on business bumping to the radio...When this big ass police looking dog scared the living shit out of me. It came up right next to my car running side by side trying to get in front of my car. Mind u that i was going that fast but i hit the breaks mad quick...I luv dogs if i would have hit it, that would have broke my heart i don't think i would be able 2 drive any more. I'm all about caring for animals and ppl this is y im studying nursing lol. What crazy ass dogs live in ur neighborhood? I wanna hear about it lol.