I see ducking dogs everywhere. Team after team stroll past Elsa and I; at the beach, the park, malls and street, ducking. What do I mean ducking?
Ducking - to avoid or evade a blow, unpleasant task, etc.; dodge.
Humans strolling along, walking their dog with their arms swinging back and forth. Along with their arm swing is also the leash swing, perhaps a poop bag swing if you are one of those folks who attach a poop bag holder to the leash. While the leash swings the dog ducks to avoid the constant and annoying leash and/or poop bag holder hitting them in the face or head.
When I am working with a client on walking, loose leash walking or heeling, I'm all eyes. I was trained as a youngster in obedience by a very strict obedience teacher. She was unfortunately a harsh conventional method trainer but that was many, many years ago when there was nothing else. She watched our every movement looking for things that would interfere with the robot like obedience we were training our dogs to do.
The obedience teacher hated when the human students swung their arms about willy nilly. She'd scream at you until you stopped. If you held your body crooked, you'd hear about it. Anything that was unlike a statue was not allowed. So, although I hated the training method; movement was something that was drilled into my head. To this day, the arm that holds Elsa's leash is motionless, typically held by my waist. For those students who did not catch on to the "no flailing" rule; they were told to keep their hand in a belt of waist of pants.
I see people walking along, not paying any attention to who is on the other end of the leash. The leash can be whipping them in the face, their collar half pulled over their head, the humans hand even hitting the dog in the face as it swings. So many dogs walk very far away from their human simply due to an avoidance behavior. The guardian has no idea that their dog is not enjoying the walk because of the swinging.
When you walk your dog, pay attention. Yes there are times when something can happen for a moment and you might miss it. But typically if you look down at your dog on a regular basis you'll notice this kind of stuff. Does your dog strain at their leash? Either sideways or backwards? Well maybe they are trying to avoid the swing.
The whole poop bag holder is a big thing now. I don't understand attaching one to a leash, honestly. I wear the very chic fanny belt; although it is not on my fanny. ;) I carry everything I need on a walk in it, poop bags included.
So pay attention. Ask someone to watch you walk. Be aware of what your body is doing. Along with the annoying face swapping, there could be other things going on that you have never noticed.