He is a 9 year old terrier, loves people but has always been wary of other dogs. As he has gotten older he has mellowed a lot and now goes to the dog park twice a day without incident - I would describe him as tolerant of other dogs rather than enjoying their company e.g. will sniff bums and move on but has never ever played with them, even as a young pup.
Anyway today a springer spaniel came up to him while we were in the park with my toddler DD, they sniffed noses (always a bad sign it seems?!) Then my dog just went for this dog. The other dog pinned him to the ground and he squealed and then it's owner called it off. We parted ways quite happily, the other lady was fine and I apologised profusely because my dog definitely started it. We said no harm done and on we went. On the way home I noticed that he had blood all down one side of his face. I felt bad I hadn't noticed before but he looked fine at the time and my attention had been on DD. Took him straight home and gave him a bath but can't find a source of the blood at all, not a single cut. It must be blood from the other dog and I feel mortified. I assume this lady will realise when she gets home her dog was hurt but I have no idea who she is. What would you do? Should I attempt to find out who she is e.g. call council (we have to register dogs to local council here in Australia). Would you be concerned about this attack? Should I see a vet? Feel very worried and upset 