A neighbors dog almost killed a bully while I sat there watching.
This German Shepard lived in my neighborhood and I used to pet him. I also gave him leftover food scraps such as beef and pork or uneaten chicken etc. I was 12.
One day this bully grabbed me and gave me "noogies" by rubbing his knuckles on my head.
Seeing this the German Shepard tried to kill him. It took me and a neighbor to get him off of that worthless punk. I wasn't trying to save the bully: I was trying to save the dog from being euthenized.
The bullys mother said she was going to call animal control but I told her I'd testify in court that her son was bullying me around and that my friend who happened to be a dog protected me.
She called no one. The dog lived another ten years before he died of old dog age.
Treat animals right and they'll be loyal to the end.