Dogs are man's and woman's best friend.  I have two and love them dearly!
Agreed the domestic dog is the most wonderful thing on earth. What type do you have?
I have a huskador and an Australian Shepard/Husky.  Do you have dogs?
 I have a pit bull. I'm glad dogs were the first species to be domesticated 
Awe!  My parents had the sweetest pit bull mix and my cousin had an awesome full-blooded pit named Butch.  I am glad dogs were the first domesticated animal!
I want a second dog but something different. Dogs vary widely in size. I think we want something bigger.
Big dogs are great!  I prefer my dogs to be at least 35-40 pounds.  What are you thinking about getting?
I'm not sure. I'll rescue a giant dog. I used to have a dingo hybrid. Half dingo and half domestic dog, maybe i'll get another.