Cocker Spaniels are mid-sized, adorable, affectionate, and full of energy which makes them wonderful pets. But they do have certain needs of their own. Here we list some things one should know before getting a cocker spaniel as pet dog:Cocker Spaniels are mid-sized, adorable, affectionate, and full of energy which makes them wonderful pets. But they do have certain needs of their own. Here we list some things one should know before getting a cocker spaniel as pet dog: