They say you can't teach an old dog new tricks. But I beg to differ.
Mr. Magoo, the shih-poo puppy mill rescue lived for 4 years in a cage with no human love. He is 7 or 8 or so, we really don't know since most of his teeth have rotted and had to be pulled due to neglect.
In his three years with me, I have taught him to eat and drink out of a bowl, go outside to potty, walk on a leash, go up stairs (but not so good at down), play chase, fetch toys, and sit, and lay down. He knows people aren't bad, and he enjoys being petted, playing with his kitty siblings, and belly rubs!
Our newest venture is learning to "wait" for treats. This is him showing off.
I love that silly "second hand dog" with all my heart.