Like Twister I too know an unnaturally small toy poodle that has broken three of it's legs (at different times) by jumping off the couch.

Another thing to remember is that even if the dog is fairly healthy, something as common as a bout with diarrhea can be quite life threatening as they can dehydrate so quickly.

I personally could never have such a small dog. I'm way too clumsy. And I also believe dogs should be dogs, you know walking around on a leash and what not, not being picked up and carted off all over the place.