I've always loved dogs and have had one since I was three. We bought her from a kid selling puppies out of a cardboard box on the street where we lived in New York City. Great dog. We named her 'Marcella' after a Raggedy Ann character. She grew up with us.
My cartoon strips in college strived to have the Schulzian mix of surrealism and Charlie Brown angst. A bit of that combo shows up in 'Up.'
I've owned a lot of dogs in my life - Marcela, Rusty, Petey Pup, Precious, Rosy and Ava. Each were in love with life's simple pleasures, but being people in dog suits, as they seem to be, they each had a defined personality!