OK, I think it's safe to say that NO dog toy is 100% safe. I said before that I give my dog nylabones and beef bones, but I know that she is not an aggressive chewer and unlikely to bite off whole chunks. So I feel relatively safe giving her those, since she needs something to chew. A dog can choke on anything, so I think the most important point here is that we have to examine their toys regularly for wear and watch their chewing habits. My heart goes out to anyone who has lost a dog this way.