Last I checked, dogs don't carry knifes or guns... But I guess in your world anything is possible.
First of all, it's
KNIVES, not
KNIFES...
Secondly, animals are animals, and their behavior is governed by instinct, reactions, and training. Even the best trained dogs can break from their conditioning and attack a perceived threat, or they could go with the pack mentality mimicking another, less well-trained dog.
These dogs have big enough teeth to inflict the same wounds as effectively as any knife. Your argument about carrying knives or not is irrelevant.
Thirdly, you should stop trying to apply Hawaii statues literally when you KNOW they are pretty much all inadequately written to begin with. The laws are NOT written to keep dogs from attacking. Here, our lawmakers apparently thought addressing liability AFTER an animal attack was sufficient.
LESSON: Whenever the law is silent OR AMBIGUOUS on a specific topic or situation, the correct course is to interpret the law in favor of the citizen rather than the state.
Unless there is case law to the contrary, that's how these things are adjudicated. There need not be a "reasonable person" test nor a "self defense" evaluation. If there are no laws making the killing of attacking dogs illegal, that in and of itself will not be a problem.
The other side of the coin is, you may have to answer for discharging a firearm in a populated/residential area if relevant. But, I doubt anything will come of the specific act of killing the dog/s. If the dog is not under the control of the owner or another person, then the situation is on them, not you.
That's just my unprofessional 2 cents!
I'm not a lawyer, but I did get a very restful sleep last night!
