Hugo, I am sorry for what you are experiencing, but in all honesty, I don't think it should come as a surprise. That line of dogs, Boz dogs, are a highly highly specialized line of Fighting dogs, based off of an LGD template. What good would it be to have a fighting dog, especially 1 the size of a Boz dog, who is as aggressive and confident with people as it is with its opponent, especially in the close proximity that the dogs are to the handlers. Your dog is sounding to me like many many game APBT. Extremely dog oriented, and extremely human submissive, to the point of fear of the handler and showing utter signs of submission(peeing on itself when you get near it) just to stay on your good side. The dogs come from very high tension breedings, meaning dog to dog combat being the sole reason for the creation, just as the case in the APBT. When all that is focused upon is fighting ability and drive, things like strong nerve to new situations and stimuli go out the window. Knowing this, it really dictates the very stringent raising a dog like this needs(strictly game bred fighting dogs). No raising of the voice at all, no laying a hand on in any way but utter pleasure and joy/fun, total redirection in its play, and VERY limited exposure to the other dogs in the house. A dog like this NEEDS to be isolated in a crate/kennel with tons of individual time with the owner/family/handler until it forms a very very strong bond to its owner FIRST, before being assimilated to a pack. Socializing should entail everything from meeting new dogs both on home turf and on neutral ground, going on and over as many obstacles and types of footing/gratings, new noises and tones and levels of volume, meeting as many new people as is humanly possible in as man different settings(like going to a pub, pet store, park, parking lot, zoo). I mean, I hate to say it, but this seems to be a match doomed from the beginning. I don't want to be harsh, and if that is how I am coming off, i am truly sorry. That is not my intent. I am just trying to give you my opinion, as well as trying to educate anyone who happens to read this who may be considering a dog of this type(strictly combat type from fighting lines) for anything other than what it was bred for. I hope this was of some help. Mike