So knee jerk reaction is to go for the gun and shoot to kill first. And that's ok with Valisk...
It was totally and completely fucked up for the officer to shoot the dog first then start berating the owner. The officer, again just by his presence and threatening behavior, instigated this. Then when it was found out that there was a mistake, instead of admitting the mistake, it was the fucking owner's fault that the cop reverted to cave man instinct and shot first??? No "I'm sorry sir. I shouldn't have shot your dog." They (plural because of the superior officer too) go straight to the "fuck you and your dog".
I have said it countless times and it remains true in every story I have seen like this. The cops have a command presence and just by them being there the situation is already escalated. It is their responsibility to remain in control. When that doesn't happen, things get much worse than they should be. That being said, I am not saying that cops shouldn't and don't make mistakes. But, when a mistake is made, they need to own their actions.
PS, why the fuck is everyone (Valisk) so scared of dogs? I have never seen a dog that I couldn't overpower and outsmart....ever....I have been bitten before and I can say I have done far more damage to myself falling off a skateboard than a dog ever could. Why don't we start burning skateboards when they cause injuries?