Knock KnockWho's there?Phoebe!Phoebe who?Phoebe too expensive for me!Knock KnockWho's there?Phyllis!Phyllis who!Phyllis in on the news!Knock KnockWho's there?Ping Pong!Ping Pong who?Ping Pong the witch is dead....!Knock KnockWho's there?Pizza!Pizza who?Pizza the pie!Knock KnockWho's there?Plato!Plato who?Plato fish and chips please!