• American Pit Bull Terriers are terribly guard dogs and they were originally bred away from human agression. If the breeder is telling you that he will be a good guard dog please run away from that dog. American Pit Bull Terrier will fight other dogs if challenged. They can get along with dogs of the opossite sex or smaller dogs if socialized properly and taught obedience. I think you should do a lot more research before bring a dog of this type to your home. There is much to learn about the breed and I do not recomend doing it while you already have the dog. You would be setting up the dog for failure and most owners end up putting the dog down or throwing it in the shelter because of its animal agression.