We have a 1year old Australian Shepherd/Border Collie/Mystery mix who was generally very well behaved until we moved into a house with a big yard.
The reason for our move is that our Molly has cardiomyopathy, a condition where the heart muscle walls thicken, eventually leading to heart failure. We are meant to keep her quiet, which anyone with these breeds can imagine is near impossible. Our vet has acknowledged that her life will be shorter, but fuller if we still provide her with play and activities.
We moved to a house with a garden, so that we could play with Molly outdoors, as she can no longer go to the dog park (too much on her heart).
She still has plenty of supervised interactions and doggy dates, we go for about an hour (usually more) of walking a day, we play with her in the house and the garden throughout the day, give her plenty of attention (both of us work from home) and loads of healthy snacks.
Our issue is that since we have moved, she is behaving like a petulant 2 year old. She wants to be outside all the time, and will complain for HOURS to be let out. She will jump in our laps, paw at us, and generally complain. We can no longer say the 'G' word without her bounding to the door. She will ask to be let out the minute we come back from a walk.
If we indulge her, she refuses to come back in, actively doing the opposite of what we ask of her in that moment. It's way to cold to leave her outside on her own (-20)
She's driving me, and my partner nuts. "no" seems to mean she tries harder. She is in no way destructive, and still behaves on walks and around the house.