I’ve never done this before, I’m only doing it because I need to buy a color printer.
Have you ever noticed that dogs have no interest at all in humans taking a pee or a dump or even having sex. One would think such natural things would be of some interest to them, at least the smells. But no.
I suppose dogs just see those kind of things as so universally natural they could care less. But the problem there is that when other dogs do those same things, it’s the most important thing to them, well other than a cookie.