Ahhhh I just caught Harley eating a little stone out of her substrate! I caught her when it was still in her mouth and I tried to prise it out but she was not giving up and quickly swallowed it. She seemed to have no issue swallowing it but is it likely it could get stuck further down?? To top things off she then stomped off to her bed in a sulk disamused that I had tried to take something out of her mouth