My last yorkie did the same thing except it was the cat poop. She would bring it to me than take off running with dry cat poop in her mouth. I had to chase her all over the house and pull dry cat poop out of her mouth with my bear hands....talk about gross. Trust my pulling dry cat poop from her mouth was like pulling teeth, she would not let go and I literally had to pry her mouth open to get it....
I had to go and get a whole new litterbox setup to prevent Miss Thing from eating "kitty treats" Rest In Peace Brandi