Let’s try it this way. If I kicked your dog, would that then make it perfectly okay for you to kick it? And does thinking that Sean maybe kicked it earlier make you kicking it now any less cruel/stupid/fucked up? No. No, it doesn’t. All you’re left with is a dog that doesn’t understand why it’s been kicked twice (maybe even three) times, two (maybe even three) angry people, and a huge vet’s bill. The only winner out of the whole sorry business is the vet. And just pray that nobody’s phoned the RSPCA...