Look at all those monkeys
Jumping in their cage.
Why don't they all go out to work
And earn a decent wage?

    How can you say such silly things,
    And you a son of mine?
    Imagine monkeys travelling on
    The Morden-Edgware line!

But what about the Pekinese!
They have an allocation.
'Don't travel during Peke hour',
It says on every station.

    My Gosh, you're right, my clever boy,
    I never thought of that!
    And so they left the monkey house,
    While an elephant raised his hat.