Smart doggie!
Our late dog learned a lot of self-taught tricks around age 10. She figured out how to jump up and open the front door latch, and paw open the other sliding screen door too. Then she'd head up the hill where construction workers at a new house site would leave lunch trash. Somehow those chicken bones never did her in. Neither did the chocolate mousse on paper plates she found in our post-party garbage and decorated the living room with.
I'm on the wait list for a Hearing Dog certified for public access. I have no doubt the dog will be smarter than we are.