re: When to know when making right decision of having dog put down?

“Dogs’ lives are short, too short, but you know that going in. You know the pain is coming, you’re going to lose a dog, and there’s going to be great anguish, so you live fully in the moment with her, never fail to share her joy or delight in her innocence, because you can’t support the illusion that a dog can be your lifelong companion.
There’s such beauty in the hard honesty of that, in accepting and giving love while always aware that it comes with an unbearable price.” – Dean Koontz