Sorry if this is long, I'm just feeling really
about my dog's behaviour. When he was a puppy we made sure he had lots of socialisation with other dogs and he now has quite a few doggy 'friends' who he really loves and enjoys going on walks with, playing together etc. There were a couple of dogs who didn't like him and snapped at him, but it didn't seem to bother him and although he's wary of them, he has never shown any aggression to them.
He's now 2 1/2 and over the last year/18 months his behaviour towards unfamiliar dogs has deteriorated. At first we thought it was a territorial thing as he didn't like next door's new puppy and went for dog walking past the house when somebody left our front door open accidentally
Then he came across a couple of unneutered males when out on a walk who he got very barky and snappy with, although when off home ground he generally seems OK with other dogs - his posture seems quite alert and wary when he sees them, but has never snarled, barked or shown any aggression.
Today we went over to a friend's house to see her new puppy and at first he seemed fine with her and then snarled a couple of times. We then took them for an on-lead walk together and he was OK, tried to sniff her bottom, but generally they didn't have much contact. When we got back to their house he reverted to the snarling growling when she got close. He also hated it when my friend picked her puppy up. I'm wondering whether this is an indication of anything? He's always hated the cats being picked up, doesn't like it if he hears me talking to our pet ducks, doesn't like me picking the children up (they're quite big now, so this doesn't happen often!) It's as though he's jealous of me giving them attention, and he really didn't like it when I stroked my friend's puppy! He is generally quite territorial at home and gets very barky when he sees a cat/dog/bus walking past, although we've taught him the 'quiet' command and he settles down quickly most of the time.
I just feel a bit scared now that I've got an aggressive dog on my hands
The friend I saw today is one of my best friends and she was really nice about it, but I want our dogs to get on OK so we can spend time walking our dogs together! He's not been neutered yet; is this something that would help?! Is there anything I can do training-wise to make a difference? He seemed to just get used to our neighbours' dog in the end and they interact through the fence OK or if we bump into them on a walk, so maybe he'll just get used to my friend's puppy?!
Aaargh! Sorry for the long rambly post! Reading this back he sounds like a bit of a nightmare, but he's really a nice dog the majority of the time! Any advice please?!