Basically, it's probably a good demonstration of what not to do.
Someone responded in a comment with this article from Leerburg on how to break up a dog fight. Link
That article is definitely educational.
Leerburg wrote:A final note to this article. I have received a great many emails about dog fighting. Many were well meant with ideas of how to use a hose and squirt water on the dog etc., etc., etc. While I appreciate these thoughts, the methods are simply not going to work on the very hard, very tough, working dog.