I love dogs, and have cared for my own pups since childhood. And have watched friends pups regularly over the years. When you have one dog at home, it's easy to add another to the pack. My dog Nando is a 10lb senior chihuahua who can come across scrappy on first introductions, but after a few minutes of getting to know the other dog(s) he settles into the new routine. He is no longer a super playful dog (he's old), and spends much of his days sleeping. He finds it easiest to get along with other small-medium dogs.