Sunday Morning correspondent Bill Geist visited with Tillie, the canine creator of a number of impressive paintings. When, and if, you think of dog art, you probably think of traditional oil paintings ...

ANNAPOLIS, Md. (AP) -- When a dog growled at one of Barrie Barnett's paintings, she wasn't offended. The Annapolis artist strives for realism in her work, so when a real dog thinks his painted ...