Lisl will sometimes pick up a rock while on a walk. I can't really see her jaws move when she does this, but then I'll see her chewing and have to stop and clear her mouth.
So far I haven't caught her swallowing one or seeing anything in her poop.
Bear, Anna, Molly, Ossie, and The Countess Lisl von Schlaf
An Unhappy German is a Sour Kraut!