Dogs are friends for life.
My wife trained our now 13 year old lab, he as never done his business in the house, and requires no leash.
He is a big baby, still at his age will do alot of tricks for treats.
He would never roll over, but will sit, speak, high 5, high 10, and not leave the yard.
I dread the day he passes on, my wife said she would not have the will power to train another dog.