Ignorance

Ok so, this thing called a dog that lives where I live.  I will say this, he is NOT my dog.  I just can not believe how horrible of a dog he is!  Anyways, this dog used to be a decent dog until recently.  Every morning when I leave for work he chases me out the door, then tonight someone knocked on the door and in just attempting to answer it I get bit hard enough to leave a quarter size dark bruise on my leg.  Now I consider myself pretty tough but, it hurt!  What if this was my child...he could have bit his leg off literally...when I tell Bob this he says well just put him outside...okay, but when Bobs home he comes in whats the dam point and plus....he'll probably start tryin to bite me when I try and put him outside...ughhh sick of it! I feel like I'm a prisoner of this dog in my house....ri-frickin'-diculous!