Mine serves as scum repellant.
It’s funny how “good” people don’t fear approaching him.
I assume the consciences of scum prevents them since they know the dog knows what they are.
I’ve only had one scum actually try to get near me...and the dog wanted to eat his entrails.
:)
You’ve trained him well (even if the Disapproving Doberman does, in my opinion, disapprove of far too much :) ).