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					Originally Posted by yorkieusa  Your big dog should be trained not to be possessive of toys or chews. Swissys have various degrees of herding instinct, some with very strong drive and others with moderate drive. Strong herding drive pairs closely with strong prey drive, leading to a desire to chase small animals. Swissys should be taught from an early age to not chase small animals such as cats, squirrels and small dogs. Strong herding drive can also lead to games of chase and tackle with small children if not directed and trained properly.  GSMDCA.ORG 
How big is your yorkie and how old? I think I'd be afraid to ever leave a tiny yorkie alone with a dog that size that has already shown that he would willingly hurt the yorkie. | 
 
  sphi is a tea pot yorki, shes an 11 pounder.  and my larger dog is very well trained to not chase other dogs.ect but diva is smaller than the other dogs in the dog park so she sort of looks like a rat to her.(sphi is very short but round...a paper towel roll is what she is! xD.) sphi is 1.5 years and pepae is 5. :] im trying to get pepae to not be so posseive of her things, but when she was young we played tug or war with her(she was my first dog so i didnt know) and it has been a problom ever since(not letting go of small things, hiding things, putting sharp things in her mouth for attention.ec)