I would definitley use a harness on him, small dogs trachea can get damaged with a collar. I think you can train him just a good with a harness. My two never have had a collar on, they play to ruff with each other. When we walk they pull and there is no pressure place on there trachea with a harness. Hope Tiko's x-ray goes good, my two would never lay still enough to get it done, they are brats lol......Cindy |