Why don't you hang out the window like other dogs?

What dog owner can't relate to this cartoon?  I cut this out of a magazine back in the 1980s.  The cartoonist is Gallagher and it was published in a book called "Animals, Animals, Animals".  I'm not sure which magazine this was clipped from but the back of the cartoon has the title of an article called "The Children Nobody Wants".  Sounds cheerful & uplifting!  I'll stick with the cartoon!