This is a really serious issues, i have seen first hand a dog attack and its not pretty...the owner swear the dog has never done such a thing and don't know why the dog would flip just like that...But we will never know why a dog is cool now and 100% aggressive the next day. In the UK, some dog breed have been found very aggressive and such breeds have been banned. i can't remember what year but a hound killed a 6 years old boy and it was really dreadful.
