Shelter dogs aren't broken.

"Shelter dogs aren't broken.
They've simply experienced more life than other dogs.
If they were human, we would call them wise.
They would be the ones with tales to tell and stories to write.
The ones dealt a bad hand who responded with courage.
Don't pity a shelter dog.
Adopt one.
And be proud to have their greatness by your side."

~dogsrule.com