I guess it depends on what you mean by submissive. There is absolutely nothing worse than seeing a dog you love curl down and show her belly in fear of you or to appease you.
But if you want to make the bed and you have 72 pounds of dog hair sprawled on it, and you tell her, OFF, then she should get off the bed, understanding that she needs to comply with what you tell her. These dogs are too big and too smart and too powerful to not submit to their human's training/commands.
I don't want a dog that will come up the leash at me, or to challenge me at every turn.
I like a dog who readily accepts human leadership.
Jenna, RN CGC & Babs, CD RA CGC HIC
Heidi, RA CGC
SG3 Odessa, SchH1, Kkl1, AD
Ninja, RN CGC & Milla, RN CGC
Joy, Star Puppy, RN CGC
Dolly CGC & Bear CGC