Apologies in advance, this is going to be a long one...
We have a male 6 month old Miniature Schnauzer. Until very recently he has been a very good natured dog... gets on well with people and other dogs. Everyone always commented that is has a lovely temperament and what a confident and friendly dog he is. However, he has just started being aggressive with my 6 year old DD.
Although the dog has the run of the house while we are in (except for the bedrooms), he sleeps at night and eats in the utility room which is just off the kitchen. We have never experienced any problems with him before but about 10 days ago I was in the utility room with DD & Dog. DD was cuddling Dog on the mat by the door (in fairness was probably crowding him a bit, but he was used to that, as previously would put up with almost anything) when he suddenly turned on her and bit her hand. I smacked him on the bottom and then shut the door and locked him in there. Then about a week later a similar incident occurred, although this time he didn?t actually bite her. And since then he has been growling at her whenever she went into the utility room, he also cowered away from me on a couple of occasions when I have gone to stroke him while sitting on the mat by the door (the vets thinks this maybe because I smacked his bottom here). I took him to the vets just to check he was ok vet instantly said that he needed to be castrated as he was also demonstrating an inflated sense of confidence. So we booked him for the operation for Friday just gone.
So he has now been castrated... but then on Sunday DD and I were getting ready to feed Dog in the kitchen when suddenly he attacked DD, even more aggressively & frenzied than before ? he bit her on the stomach and was tugging at her dress growling very loudly (my husband heard him from outside). This time we abandoned the food and put him away in the utility room to cool off. Then abit later I was in the kitchen with Dog and when DD walked in he growled at her aggressively again.
I had thought it was food-guarding issues and so have been getting DD to walk into the utility room confidently and for her to give him his food (making him sit first), to show him that she is a ?provider? and he needs to do as she says. We?ve also been getting her to play tugging games with him and ensuring that she wins and then making him sit before she gives the toy back etc.
However, a moment ago we just had another incident and this time it was not food related. We?ve had a great day... DD & Dog have been getting on great together, playing and going for a walk etc ? both very happy in each other?s company. But just now we were all in the living room and DD started to stroke Dog and he started growling quietly at her, I then stroked him and he was fine and came and sat down by my feet. DD then stroked him again and he went for her ? he didn?t bite (mainly because he was lucky not to make contact) but he did scratch her leg and made a horrible aggressive noise. I have put him away in the utility room and don?t want to look at him again. Could he be being possessive of me?
I have called a dog trainer in to come for a home visit ? but does anyone have any opinions or words of advice. Am I wasting my time with him? I don?t want a lifetime of not trusting him with her.