Yep, a Dog thing, and a _real treat_ judging from their ecstatic doggy expressions. Mine all coprophagate, and while they prefer herbivore poop, they will assuredly sample carnivore droppings. (Altho I don't recall ever seeing a dog try dog-doodys; probably I have a mental block in place.)
As it turns out, Equine poop is one of the more benign dog fetishes; Elk-sh*t is far worse, and Sheep or Goat . . . we won't even go there. And dead fish . . . Erp . . . :-P
Fortunately my K9s don't tend to regurgitate, but it _is_ unpleasant to have to share the living room with a pack who are still green from visiting the poop pile, and finding some fresh product there. And again, fresh Elk is nearly unbearable, and invariably results in eviction until the stink wears off. Gimme Skunk any day.
Steve Jernigan KG0MB
University of Colorado