Yeah, people casually talk about shooting dogs in just about every topic it comes up in 'Predators & Pests'. Hence the popular 3S/SSS acronym. There's been at least 3 or 4 more people come in and prove your point since this post. A bit disingenuous for anyone to pretend otherwise. This is the only part of this website where I've had to block/ignore users for incoherently raving about ways to kill animals.
My question for everyone touting this 3S nonsense, is if you clearly think you are in the moral/legal clear, then why feel the need to hide what you've done with the shovel? Because your neighbors can't be trusted with the truth? You're the only one capable of making responsible decisions? Somebody who would shoot my loose dog and not even have the common courtesy to tell me would get zero respect from me. The idea that 3S is responsible, especially if you're going to suggest it without explaining potential legal consequences. or compassionate is pretty laughable.
I live in a fairly rural spot in Wyoming where nobody talks to anybody, and everybody still knows who the neighborhood dog killer is, so unless you literally live out of sight of any/everyone then you probably aren't being as sneaky as you think. I'd bet a few of you have a reputation even if you don't realize it.