I have a chin and we got a dog (pit bull/lab mix) several months afterwards. Quincy - my chin - is very interested in Princess - my dog. She wants to sniff noses and check out this new thing. Princess wants to check out Quincy too - and eat her!!! She tried to bite Quincy through the cage shortly after we got her. Needless to say, Quincy is never let out of her cage while Princess is in the house. Just keep in mind that some dogs are hunters of small animals by nature (as is the case with my dog) and will never "get over" that aspect of their breeding. If you do get a dog, keeping the dog apart from your chin may be the best thing for them.