IN THE BEG. OF MARCH AND I HAVE A 5YR OLD PUG. MY PUG WANTED NOTHING TO DO WITH THE YORKIE AND SHE WANTED EVERYTHING TO DO WITH THE PUG. I JUST ALLOW THEM TO WORK IT OUT. THE ONLY TIME I GET INVOLVED IS IF I SEE THAT ONE OF THEM LOOKS LIKE THEY ARE GOING TO TRY TO BITE THE OTHER ONE. I AM SURE IN NO TIME THEY WILL BE BEST PALS.