Hi, I have a rescue dog for the last 5 weeks, when we got him he had kennel cough, and we waited the 5 days after the cough had gone, as advised, before we allowed him to say 'hello' to any other dog, in case of infecting them. He is a smallish, shin height, shaggy terrier mixed with goodness knows. He is friendly, well mannered, can 'sit', understands 'no', except when furries are around and is very relaxed at home.
Over the last couple of days when he meets a new dog and I explain he is a rescue before he approaches the other dog, he is fine for a very short time, maybe 10 seconds, with sniffing each other at nose end. The other dog is completely chilled, but he then starts to bark and make growling noises at them, at which time I try to quieten him and steer him away. Obviously the other owner walks away with their dog.
Why is my dog doing this? What should I do?
We have no background on him, but the rescue centre said that he was absolutely fine with other dogs. But . . .
Any advice?