I have a dog and a cat.  They live in perfect harmony like ebony and ivory!  LOL  I share my home with a feline and a canine.  

With cats you go away on vacation and have somebody take care of them while you are gone.  You return home and they say, "Oh, were you gone....I didn't even notice!"  Yawn!  

With the dog you go out to the front lawn to get the paper.  When you go back in the house the dog is thrilled to see you and has a big celebration in your honor when you have only been gone less than 60 seconds!  There is nothing like a dog to make you feel loved!    LOL