hi i need help with my crestie and was wondering if you could help. i recently got him from a friend who didnt have enough time for him. from what the breeder told us hes 1and a half and was fine around other animals. we have2 cats and another dog hes a 7 yr old rot/lab mix and the crestie barks like crazy and trys to snap at him but is completely fine with the cats.. is there any way to fix this?!

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