Isn't it kind of hard to shoot a dog, especially a dangerous one? They move around a lot faster than humans.
Maybe a lot of them are just barking and looking scary, but don't know enough to be afraid of a gun, so stand still?
Maybe a lot of them are just barking and looking scary, but don't know enough to be afraid of a gun, so stand still?
It's trivial to find videos of dog attacks that contradict your absolutist assertion.
(I've been attacked by dogs multiple times, and indeed, they warn before attacking.)