I’m sure Grace was a wonderful friend and I imagine you miss her quite a bit. Collies are a very intelligent breed. Do you have any other dogs?
I have rescued hundreds of pit bulls over the last 20 years and have only encountered one that could not be rehabbed. They are a very smart breed. I have taken them to the dog park off leash and never had any problems.
I also have a similar story. A cat came over the fence into our yard and my 90lb pittie went to leap off the deck after the cat. All it took was “no, stop” once and he turned to look at me in mid flight, landed, came back up the stairs to the deck and sat and watched the cat. He never attepmted to chase a cat again although he wasn’t fond of birds. He also never met a child he did not like. In a simplier time they were called nanny dogs for a reason.
I have two more Cockers.
Rex Harrison who is always in his formal Tuxedo and Jack Lemon who is an energetic punk, always wants to play, loves learning and he’s beautiful .