I haven't and thankfully I haven't had to. You did the right thing. What horrible people firstly for doing it in the first place and then secondly for bragging about it. I did have some one kick my dog once when she was a puppy. He kicked her so hard she did a double saumersault. He ran off so I couldn't get a good look at him to report him to the Police. They wouldn't have done anything anyway to be honest. Some people are just hateful