They're coming to take me away

In the song, the story is told in the first-person by an insane dog owner who is raving he will be taken away to a mental institution, referring to it as the "funny farm" and "happy home". His dog has run away and he is having an imaginary discussion with it ("Well you just wait, they'll find you yet, and when they do they'll put you in the ASPCA, you mangy mutt"). The cover art shows a spoof "Napoleon" holding an invisible dog on a leash, the collar being next to a fire hydrant (presumably so the dog can relieve itself).