Vend

In I put my dollar

And out it comes again

Straighten out the corners

And then I try again

A split second of hope

And out it slides again

This stubborn thing sticks out

Its flat green tongue again

I try to use some change

But I only fail again

Each coin just passes through

And so I try my bill again

This time it stays inside!

But my hopes fall flat again

The dense thing doesn't know

That it has robbed me yet again!

Oh, wouldn't it be funny

If the Chinese did us in

And send us snack machines

That will only accept yuan