Louie has a dog named cat
Louie has a cat named rat
Coincidentally the dog and the cat, and sometimes Louie, chased a real rat named Matt

When the dog and the cat, and sometimes Louie, got tired of chasing the rat named Matt, they chased a bird Louie named Ramone
So the dog and the cat, and sometimes Louie, and the rat named Matt, would chase Ramone about the house
Up the stairs and down the stairs, Ramone enjoyed it, being he was a feathered letch and a louse

One day Ramone was tired of the chase and flew up the chimney and out to freedom
He squawked and screeched, "That silly dog and cat and Louie and rat, "Who needs them?!" 

So with Ramone gone,
The dog and the cat, and sometimes Louie, went back to chasing the rat named Matt
And to this day, that's where we're at