it is not a matter of keeping her on a leash it is the matter of getting her to like other smaller rodent like aniamls....is that possible? there arnt any guineapigs, rabbits, kittens, hamsters, ect that r running loose around outside ..... she is very good off the leash she walks beside me .. i never have a problem with that i trained her well.. i never could assosate her with kittens of hamsters ect when she was a pup for i was in grade 7 and never thought of it then .. My mother and father would have never allowed me to get a hamster ect.. then ... so i dont know what to do.. i am going to call our local trainer tomorrow..