[Derek/Daisy]
Slight difference; you reacted based on your instincts to what you viewed as a threat, either to your own dominance, or because you're in no way subservient, it happens. When in fights, it's a little different. Your instinct would drive you to push harder, fight longer, as if you knew exactly what you were doing. Like muscle memory. I am in no way advising you begin a battle royal though.
You can bunk in mine, I don't have a roommate and I'm utterly human. I can see what a friend is up to as well. She has some experience with vampires and werewolves.