Like I've explained above, the reason I'd be willing to choose my dog over a stranger is because I know what my dog is like. I know he's never going to kill anyone. I know nothing about the stranger.
But yes, I would regret it if he went and killed someone after I chose his life over a human's.
I would also deeply regret it if I chose a stranger over my dog and then that person turned out to be a Bad Guy.
Also, statistically speaking dogs are less likely to come up with new methods of improving life on earth or even simply helping out other creatures in need.
But yes, I would regret it if he went and killed someone after I chose his life over a human's.
I would also deeply regret it if I chose a stranger over my dog and then that person turned out to be a Bad Guy.