I have a friend who is a vet.
I asked my veterinarian friend that day, what is the hardest thing about being a veterinarian?
He said that the most difficult part is when euthanizing the pet, because 90% of the owners can’t bear to watch it in the ward for injection.
But at the last moment in the world, pets are actually looking for their owners anxiously.
And this ipart often made him feel broken.
My point is never leave your puppy even if euthanizing is coming for it, stay with it at its last moment.
And Never abandon your pets, you would never know what miserable thing could happen to them once you abandoned them.
A few days ago, a stray dog fell into the asphalt pool on the construction site and the cute puppy was burned. Fortunately, it was picked up by workers with a shovel and placed on a grass field. see my answer about a stray dog on What is the best thing you saw today? (https://www.quora.com/What-is-the-best-thing-you-saw-today)