Now I know this is a touchy subject, so DO NOT go off on me here. When I was a kid and growing up, it happened all the time. I'm just asking is it still legal, or have they made laws against it.
Let's say your dog is old and in bad shape, on his last legs, and you want to do the proper thing and not let him suffer any more. Can you shoot him, or do you have to now pay the vet to put him down? We used to have "mad dogs" when I was growing up. A dog came up growling and foaming, you shot him on site, no matter what. Haven't heard of many "mad dogs" lately though.
I'm just asking, is it both legal, and ethical, for you to put your dog down yourself, if you feel it is necessary?
BTW, I'm an animal lover from back yonder. I do love my chihuahuas, and can't imagine anything bad for them. This is just a question, like any other question.