Week before last, my black Lab found a paper feed bag partially filled with wood shavings and chicken poop removed from the brooder pen. I couldn't get it away from him and he showered himself and the large yard with it. I raked as much as I could, but didn't get it all. Early last week, he was hunched, barely eating if at all, and yelping in pain when he moved much. Luckily, the vet is a good guy (I got him into raising chickens) so I took him in. X-rays showed an obstructed bowel. He stayed at the clinic for 3 days, with IV fluids running all the time, and canned food with mineral oil and Metamucil mixed in. He never would pass whatever it was, so the vet suggested I bring him home for one night to see if he maybe just had "white coat syndrome". Sure enough- 5 minutes afte he got home he pooped. I continued the treatments, and the next day he passed a lot of wood shavings. So, the lesson herein is that almost all dogs eat chicken and cat poop, but prevent it if at all possible. Things like wood shavings and cat littler don't pass through very well and can block things in a hurry. It was an expensive lesson, but you can bet that the shavings go into the compost heap asap now, and the cat box area is now secured!