If you have previously recommended this thread, you should see a tick / check mark on the recommend button. Click the tick to undo the recommendation (the tick may appear to change to a cross as you do this.) If you added a comment with your recommendation, you will need to delete that from your facebook wall separately.
We just had a phone call from the owner - he ran away last night and they have been looking for him, and the police told them we had found a dog, so we compared descriptions and she is pretty sure he's her dog. She's going to ring the SPCA and make sure he's the right dog, and get him home.
I checked with the SPCA yesterday, and the dog went home on Sunday with his owner - so he obviously wasn't too badly hurt - he was limping, so I was worried about his leg/shoulder, but I guess it must have just been bruised or strained.