Our dog named Loki lives with us for over 5 years now. We got him from a shelter. When he came into our lives, he was just a ball of nerves: shaking, hiding under the sofa, afraid of everybody and everything.
It took three months to teach him to pee and poop outside. The previous owner never let him outside of a cage so poor Loki was afraid outside...
But step by step he learned to enjoy life and his new family. Now he is a happiest dog on earth... :) <3