This is pure DS!
If you try this test yourself, you have to do it away from your home at a place that isn’t part of your dogs routine.
DS +1. Owning several dogs, I have scientifically noted that they do their dump in what ever direction they are pointing unless they are marking territory. Then, they sniff around and dump in what ever direction that they are pointing.
Agree, and my canine pretty much aligns himself to the direction we happen to be walking at the time.