WE HAVE A 1 1/2 YR OLD YORKIE WE ARE NUTS ABOUT. WE ARE THINKING OF GETTING A CHIHUAHUA PUPPY? HOW DO YOU THINK THAT WILL WORK OUT. I ALWAYS THOUGHT I WOULD ONLY DO YORKIES BUT I SAW A 3LB CHIHUAHUA TODAY THAT WAS AMAZING. WHAT DO YOU THINK? THANKS MICHELLE