the dog may just have issues or may not even be a pit. a pitbull is not a big dog like most people think they are. the massive dogs that people see now are American bullies or just a product of backyard breeding. there are soo many breeds mixed to make those massive dogs. but the key to any animal is correcting their actions while they are young. my poodle/chihuahua is the pack leader over all of my dogs and i made sure that was the way it was.