Knock, knock.
Who's there?
Doctor.
Doctor who?
Have you seen my Tardis?
Knock, knock.
Who's there?
Luke.
Luke who?
Luke, will please you stop messing around and let me in.
Knock, knock.
Who's there?
Dell.
Dell who?
Dell never know that I've been here if you don't tell them.
Knock, knock.
Who's there?
Lettuce.
Lettuce who?
Lettuce in and we'll tell you.
Knock, knock.
Who's there?
Stan.
Stan who?
Stan back I'm about to sneeze.
Knock, knock.
Who's there?
Al.
Al who?
Al live here - so you'd better let me in.
Knock, knock.
Who's there?
Paul.
Paul who?
Paul the other one. It's got bells on.
Knock, knock.
Who's there?
Levin.
Levin who?
Levin on a jet plane.
Knock, knock.
Who's there?
Lesson.
Lesson who?
Lesson to me when I'm talking.
Knock, knock.
Who's there?
Colin.
Colin who?
Colin me names is going to get you into real trouble.
Knock, knock.
Who's there?
Ivor.
Ivor who?
Ivor found my key so now I can let myself in.
Knock, knock.
Who's there?
Michelle.
Michelle who?
Michelle suit is a bit shiny.