I have been approved by an adoption group and have an appointment to see a three year old Doxie who was dumped at a shelter. We were looking for a rescue as a second dog to our Boston Terrier mix. This is a dog I know little about although two of my friends had them for long time pets and loved them. This dog is 20 pounds and sweet and mellow or so they say. He's black and tan. I want my next dog to be intelligent, friendly to cats and other dogs, not high strung, mellow,loyal and affectionate. Does this sound like a doxie?