I can sympathise with you entirely. My cat was attacked by four dogs a week ago, and they would have killed her if I had been seconds slower in getting to her. They bit her half a dozen times, but not deeply. It was a narrow escape, but she was so terrified that she didn't eat for four days and hardly moved. Thailand is the home of the irresponsible dog owner, and in my case I think that these four dogs belong to farang who lives nearby, or they are strays that he feeds. I am very sorry indeed for your poor wife.