Get a harness for sure. You may want to search silk harnesses and get one from
http://www.yorkietalk.com/forums/yor...-foxypups.html Fair price support small vendor
http://i45.photobucket.com/albums/f9.../Dog/039-1.jpg
When your pups gets bigger get another silk
Or get a Buddy belt then. It will be pretty strong for your dog. If your pup is 4lbs now I bet you will want a strong harness. I like Buddy Belts. JMO
http://i45.photobucket.com/albums/f9.../Dog/032-2.jpg http://i45.photobucket.com/albums/f9.../Dog/030-2.jpg
I don't leave the harness or any collar clothes ect if not supervised. What you think could happen probably will. IMO they are better to run naked in the house