Knock Knock Who's there? Agatha! Agatha who? Agatha headache. Do you have an aspirin? Knock Knock Who's there? Agnes! Agnes who? Agnes & Topeka & the Santa Fe! 1697. Knock Knock Who's there? Alfred! Alfred who! Alfred the needle if you sew! Knock Knock Who's there? Ali! Ali who? Ali, Ali oxen free! 1698. Knock Knock Who's there? Alice! Alice who? I'm Alice chasing rainbows....!