Thanks to all who have commented on the thread. Just to be clear, I'm asking for advice on whether I should do anything in regards to the fact that this dog has most likely been rehomed to another family with children when it has a history of biting a child. The revised listing for the dog gives no suggestion that this dog may have a difficult history and he is suggested as a suitable dog for a family with older children. The question is whether the rescue is assessing this dog properly prior to identification of a suitable home - he was not suitable for us as inexperienced dog owners with children (as we learned the hard way) and I note that most PPs agree that it is not suitable to rehome this dog again with children (regardless of breed experience) - yet the rescue has again most likely done this.
@Shambolical1 I didn't have my face pressed right into his putting the collar on. I think it is reasonable to assume that a dog rehomed to people who have never had a dog before should be able to tolerate having a collar on. If the dog is stressed to that extent by having a collar put on, he should never have been rehomed with us. And this was a dog that had been friendly and affectionate - seeking out stroking and physical closeness with us when we were sitting on the floor or sofa. It was not clear to that this dog did not like being handled. With hindsight, this was a complicated dog for inexperienced owners to read.
There are bites, and there are bites...but this really is a case of misadventure This was a bite to a child's face leaving multiple wounds requiring hospital treatment. It's hard to see how stroking a dog which had been rehomed as a pet to a family with children can be described as misadventure. The dog had a crate to retreat to should he need to do so, but she was stroking him in family space.
I agree we possibly needed more advice, although we had done a lot of research prior to adopting him. Where should novice owners get that advice? The rescue offered no ongoing support - not even a follow up phone call to see if he was settling. I sought advice after he snapped at me from a well-regarded local dog trainer. Rescued greyhounds are frequently suggested as ideal dogs for novice owners - including on MN - but this relies on rescues assessing dogs properly, and new owners with children potentially need to be more aware of the risks and that dogs can bring significant psychological issues from the tracks. Yes, it sounds as if you have identified the dog - and again this major injury probably should have suggested to the rescue that he was not suitable for us. We trusted that the rescue would assess the dog appropriately.
@MotherSpider This is definitely a fresh rehoming - the website shows him as having been rehomed twice and it is an updated description.
@Scattyhattie Thanks for your comments. This is not Greyhound Trust, it is a small greyhound rescue. I know what you mean about how some rescues use more generic descriptions - this is a gushing listing about what a sweet-natured, happy dog this is.
@adaline DD was not right in his face, but stroking his back at arms length. He whipped round and bit her. None of the doggy language that you describe was shown when I was putting his collar, for sure. I'm happy to defer to a breed expert, but information online suggests that greyhounds are a breed that can bite without any warning.
@cranstonmanor @Itallt0omuch We accepted that euthanasia may well have been the best option for this dog, but wanted the rescue to assess him - as we had had him a relatively short time - prior to taking that decision. After the strong comments that the rescue had made - and their expressed intention to euthanase him - I had almost expected that they would have pursued this.
@Bookworm4 is giving me useful advice off-thread on whether I can do anything with regard to the rescue's general rehoming practices. Many thanks.