Knock KnockWho's there?Clare!Clare who?Clare your throat before you speak!Knock KnockWho's there?Clarence!Clarence who?Clarence sale!Knock KnockWho's there?Cliff!Cliff who?Cliff the hedges!Knock KnockWho's there?Colleen!Colleen who?Colleen up this mess!Knock KnockWho's there?Colin!Colin who?Colin all cars, Colin all cars!