Dangerous dogs in my neighborhood

[Pam]

To me, human aggressive and dog aggressive are both sign of dangerous dog, as the dog has the potential to hurt other beings.

That's it in a nutshell. If someone has a dog that is aggressive in any way at all it is THEIR responsibility to keep that dog controlled. Of course it is a shame that any dog is shot, but it is also a shame that countless dogs (nice dogs too!) die each day in shelters. Unfortunately these are facts of life, like it or not.