Knock KnockWho's there?Doughnut!Doughnut who!Doughnut open until Christmas!Knock KnockWho's there?Douglas!Douglas who?Douglas is broken!Knock KnockWho's there?Dozen!Dozen who?Dozen anyone ever answer the door!Knock KnockWho's there?Dragon!Dragon who?Dragon your feet again!Knock KnockWho's there?Drucilla!Drucilla who?Drucilla kid you!