Max and Marx

I have a dog whose name is Max.

He never barks, but always quacks.

I have a duck whose name is Marx.

He doesn't quack but often barks.

Max will swim and catch small fishes,

While Marx eats from the doggy dishes.

This pair's confused, I will admit,

but that's not all the end of it...

A prowler creept by late one night;

He didn't know there'd be a fight.

He heard a dog bark in the house,

And then, as quiet as a mouse,

He made his way back to the shed

Where he almost lost his head.

He heard the quack, but saw no duck.

Instead, he thought he'd be in luck

And help himself to all my tools,

But Mama didn't raise no fools.

From the shadows Max did quack

A warning to that man out back,

Then sprang and bit him on the thigh.

My, how that poor man did cry

For the "duck" to let him go!

He won't be coming here no mo'.