Dr. Noir here!
Sun Tzu says, "The general who advances without coveting fame and retreats without fearing disgrace, whose only thought is to protect his country and do good service for his sovereign, is the jewel of the kingdom."
I protect my relationship with Dr. Lana and I don't care if I look silly, or bark when I don't need to, I just want to be sure she's safe. And I bark especially loud when someone is coming in the door, just so she knows they are coming in; and she knows I'll protect her no matter how big they are.
Now, Diva, is over-the-top in protecting Lynn, but she doesn't seem to care how ridiculous she looks either. Just my opinion.