Knock Knock Who’s there ? Cows ! Cows who ? Cows go ‘moo’ not who! Knock, Knock. Who’s there? Hoo. Hoo who? You sound like an owl! Knock Knock Who’s there ! Lion ! Lion who ? Lion on your doorstep, open up ! Knock Knock Who’s there ! Dragon ! Dragon who ? Dragon your feet again ! Knock Knock Who’s there ! Duck ! Duck who ? Just duck ! They’re throwing things at us !