We are a modern society. We can take a mouse and have it humanly PTS.

Also, what makes people think that they are experts, a vet, or the like?

How do you know that animal can't be saved?

My kitty Stash, when I found him, was hit by a car and left on the side of the road.

By most people reasoning it seems, and ABSOLUTELY NO VET TRAINING, would have said to put him out of his misery, or shoot him.

I did not, and now 5 years later I have the best kitty one could want, and the love of my life

Point: If you are not a vet, you don't know if a life can be saved or not.