But from 0 to 10, how hard was it to train them to have a copacetic relationship?
They have their moments so I am always monitoring their body language and play because Bogie is bulkier, he has brute force and hurts Bacall on occasion when he t-bones her. She comes back with her teeth snapping and I have to immediately intervene before they fight.
She will rip him a new one, even though he won’t back down.
It wasn’t that it was hard to train two together and separate but it was a tremendous amount of time and work.
Each one had to be walked, trained, biked, and swam separately. That was a lot of physical work for me, plus having a full time, albeit flexible job.
I started exercising them together when they turned 2 and I could control them with verbal commands. You have to have the training one on one for them to focus on you and not each other so that consumed a lot of time.
You don’t want them so dependent on each other that they ignore you.
I have a different bond with each of them and that dynamic shifts when I work or play with them together. I can have one in a down and stay position while I train different things with the other and then I switch out. The final training is them working together.
I love giving commands and having them respond immediately in unison. It’s a good feeling.
I love walking them together and watch how people react to them. If I had to do it over again, I would still get two but I also had two Dobermans before them so I knew it wasn’t going to be a cakewalk.
In their defense of me always harping about how much energy and drive they have; if I am sick they will both lay in bed with me without any fussing and will do it all day long. They know when I don’t feel well and will snuggle up next to me for as long as I am under the weather and they are extremely gentle about it.
I love them so much it hurts!!
Tell me what the poops were like after that! 
