I expect that you are more familiar with doberman rescues than I am.
Would it be safe to assume that Scooby had most likely been trained and socialized before being adopted?
Extremely so.
They’re well aware of societal prejudices and the rescues have to pass behavioral tests before being adopted out.
The [rare] dogs who don’t pass usually wind up staying at the shelter or a foster home with somebody who has experience handling the breed.
Of course, there are always gutless cowards who think *every* Dobermann is “threatening them”.